{"id":11263,"date":"2026-09-18T02:34:30","date_gmt":"2026-09-18T02:34:30","guid":{"rendered":"https:\/\/www.lyasilicone.com\/?p=11263"},"modified":"2026-09-18T02:34:30","modified_gmt":"2026-09-18T02:34:30","slug":"silicone-brush-bristle-design-guide","status":"publish","type":"post","link":"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/","title":{"rendered":"Why Do Silicone Snack Cup Flaps Become Too Stiff, Too Loose, or Fail to Recover?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Why_Do_Silicone_Brush_Bristles_Need_Separate_Engineering_Review\" title=\"Why Do Silicone Brush Bristles Need Separate Engineering Review?\">Why Do Silicone Brush Bristles Need Separate Engineering Review?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Which_Silicone_Products_Commonly_Use_Molded_Bristles\" title=\"Which Silicone Products Commonly Use Molded Bristles?\">Which Silicone Products Commonly Use Molded Bristles?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Does_Bristle_Length_Affect_Flexibility\" title=\"How Does Bristle Length Affect Flexibility?\">How Does Bristle Length Affect Flexibility?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Does_Bristle_Diameter_Change_the_Cleaning_Feel\" title=\"How Does Bristle Diameter Change the Cleaning Feel?\">How Does Bristle Diameter Change the Cleaning Feel?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Why_Is_Bristle_Spacing_Important\" title=\"Why Is Bristle Spacing Important?\">Why Is Bristle Spacing Important?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Why_Is_the_Bristle_Root_Critical\" title=\"Why Is the Bristle Root Critical?\">Why Is the Bristle Root Critical?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Should_Root_Radius_and_Bristle_Diameter_Work_Together\" title=\"How Should Root Radius and Bristle Diameter Work Together?\">How Should Root Radius and Bristle Diameter Work Together?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Does_Silicone_Hardness_Affect_Bristle_Performance\" title=\"How Does Silicone Hardness Affect Bristle Performance?\">How Does Silicone Hardness Affect Bristle Performance?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Should_Every_Bristle_on_the_Brush_Be_the_Same\" title=\"Should Every Bristle on the Brush Be the Same?\">Should Every Bristle on the Brush Be the Same?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Should_Bristle_Tips_Be_Designed\" title=\"How Should Bristle Tips Be Designed?\">How Should Bristle Tips Be Designed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Do_Bristles_Interact_With_Curved_Brush_Heads\" title=\"How Do Bristles Interact With Curved Brush Heads?\">How Do Bristles Interact With Curved Brush Heads?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Should_Bristles_Be_Designed_for_a_Pet_Bath_Brush\" title=\"How Should Bristles Be Designed for a Pet Bath Brush?\">How Should Bristles Be Designed for a Pet Bath Brush?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Is_a_Silicone_Bottle_Brush_Different\" title=\"How Is a Silicone Bottle Brush Different?\">How Is a Silicone Bottle Brush Different?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Why_Is_Bristle_Density_Not_the_Same_as_Cleaning_Performance\" title=\"Why Is Bristle Density Not the Same as Cleaning Performance?\">Why Is Bristle Density Not the Same as Cleaning Performance?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Do_Bristles_Affect_Mold_Filling\" title=\"How Do Bristles Affect Mold Filling?\">How Do Bristles Affect Mold Filling?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_Do_Bristles_Affect_Demolding\" title=\"How Do Bristles Affect Demolding?\">How Do Bristles Affect Demolding?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#What_Should_Brands_Test_During_Sample_Approval\" title=\"What Should Brands Test During Sample Approval?\">What Should Brands Test During Sample Approval?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Practical_Example_Custom_Silicone_Pet_Bath_Brush\" title=\"Practical Example: Custom Silicone Pet Bath Brush\">Practical Example: Custom Silicone Pet Bath Brush<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Silicone_Brush_Bristle_Design_Checklist\" title=\"Silicone Brush Bristle Design Checklist\">Silicone Brush Bristle Design Checklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#How_LYA_Silicone_Supports_Custom_Brush_Development\" title=\"How LYA Silicone Supports Custom Brush Development\">How LYA Silicone Supports Custom Brush Development<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Frequently_Asked_Questions\" title=\"Frequently Asked Questions\">Frequently Asked Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-brush-bristle-design-guide\/#Design_the_Bristle_System_Around_the_Cleaning_Function\" title=\"Design the Bristle System Around the Cleaning Function\">Design the Bristle System Around the Cleaning Function<\/a><\/li><\/ul><\/nav><\/div>\n<p class=\"PDq2pG_selectionAnchorContainer\" dir=\"auto\" data-start=\"1187\" data-end=\"1205\"><strong data-start=\"1187\" data-end=\"1205\">Answer Excerpt<\/strong><\/p>\n<p dir=\"auto\" data-start=\"1207\" data-end=\"1481\">Good <strong data-start=\"1212\" data-end=\"1245\">silicone brush bristle design<\/strong> depends on more than making the bristles soft. Bristle length, diameter, spacing, root radius, silicone hardness, brush-head geometry and intended cleaning pressure all affect flexibility, recovery, cleaning performance and durability.<\/p>\n<p dir=\"auto\" data-start=\"1483\" data-end=\"1671\">For custom silicone bottle brushes, pet bath brushes and other cleaning products, the bristle system should be tested as a complete functional structure before tooling and mass production.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1eusuvt\" data-start=\"1673\" data-end=\"1740\"><span class=\"ez-toc-section\" id=\"Why_Do_Silicone_Brush_Bristles_Need_Separate_Engineering_Review\"><\/span>Why Do Silicone Brush Bristles Need Separate Engineering Review?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"1742\" data-end=\"1790\">A silicone brush may look like a simple product.<\/p>\n<p dir=\"auto\" data-start=\"1792\" data-end=\"1847\">In practice, the bristles are the part that repeatedly:<\/p>\n<ul data-start=\"1849\" data-end=\"2004\">\n<li data-section-id=\"1j42611\" data-start=\"1849\" data-end=\"1855\">Bend<\/li>\n<li data-section-id=\"1hbvelq\" data-start=\"1856\" data-end=\"1874\">Contact surfaces<\/li>\n<li data-section-id=\"kg3170\" data-start=\"1875\" data-end=\"1901\">Move through hair or fur<\/li>\n<li data-section-id=\"4p58e9\" data-start=\"1902\" data-end=\"1917\">Reach corners<\/li>\n<li data-section-id=\"1v34ljf\" data-start=\"1918\" data-end=\"1940\">Carry cleaning force<\/li>\n<li data-section-id=\"1pgo83g\" data-start=\"1941\" data-end=\"1968\">Recover after deformation<\/li>\n<li data-section-id=\"1epn08c\" data-start=\"1969\" data-end=\"2004\">Trap and release water or residue<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"2006\" data-end=\"2098\">This means the brush body and bristles do not have exactly the same functional requirements.<\/p>\n<p dir=\"auto\" data-start=\"2100\" data-end=\"2139\">The body may need structural stability.<\/p>\n<p dir=\"auto\" data-start=\"2141\" data-end=\"2186\">The bristles may need controlled flexibility.<\/p>\n<p dir=\"auto\" data-start=\"2188\" data-end=\"2235\">A successful design therefore needs to balance:<\/p>\n<p dir=\"auto\" data-start=\"2237\" data-end=\"2332\"><strong data-start=\"2237\" data-end=\"2332\">Bristle Length \u2192 Diameter \u2192 Spacing \u2192 Root Structure \u2192 Hardness \u2192 Cleaning Force \u2192 Recovery<\/strong><\/p>\n<p dir=\"auto\" data-start=\"2334\" data-end=\"2394\">If one variable changes, the whole brushing feel can change.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1ihsyhf\" data-start=\"2396\" data-end=\"2452\"><span class=\"ez-toc-section\" id=\"Which_Silicone_Products_Commonly_Use_Molded_Bristles\"><\/span>Which Silicone Products Commonly Use Molded Bristles?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"2454\" data-end=\"2793\">LYA Silicone&#8217;s current product range includes both Silicone Bottle Brush under baby products and Silicone Pet Bath Brush under pet products. The pet bath brush product page also supports customization of brush shape and bristle design, including soft, dense, long, short and dual-texture arrangements.<\/p>\n<p dir=\"auto\" data-start=\"2795\" data-end=\"2854\">Silicone bristles can therefore appear in products such as:<\/p>\n<ul data-start=\"2856\" data-end=\"3018\">\n<li data-section-id=\"dh3dmk\" data-start=\"2856\" data-end=\"2877\">Baby bottle brushes<\/li>\n<li data-section-id=\"1h3ftmt\" data-start=\"2878\" data-end=\"2906\">Straw-cleaning accessories<\/li>\n<li data-section-id=\"xxzxsu\" data-start=\"2907\" data-end=\"2925\">Pet bath brushes<\/li>\n<li data-section-id=\"kimjw9\" data-start=\"2926\" data-end=\"2948\">Pet grooming brushes<\/li>\n<li data-section-id=\"e0kbww\" data-start=\"2949\" data-end=\"2991\">Scalp or massage-style cleaning products<\/li>\n<li data-section-id=\"1x0kh1p\" data-start=\"2992\" data-end=\"3018\">Household cleaning tools<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"3020\" data-end=\"3099\">The correct bristle structure depends on what the brush is expected to contact.<\/p>\n<p dir=\"auto\" data-start=\"3101\" data-end=\"3205\">A bottle-cleaning brush and a pet-grooming brush should not automatically use the same bristle geometry.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1ismis2\" data-start=\"3207\" data-end=\"3253\"><span class=\"ez-toc-section\" id=\"How_Does_Bristle_Length_Affect_Flexibility\"><\/span>How Does Bristle Length Affect Flexibility?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"3255\" data-end=\"3314\">Bristle length is one of the most visible design variables.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1v4pewv\" data-start=\"3316\" data-end=\"3335\">Longer Bristles<\/h3>\n<p dir=\"auto\" data-start=\"3337\" data-end=\"3400\">Longer bristles generally bend more easily under the same load.<\/p>\n<p dir=\"auto\" data-start=\"3402\" data-end=\"3445\">They may be useful when the brush needs to:<\/p>\n<ul data-start=\"3447\" data-end=\"3542\">\n<li data-section-id=\"u1r2qo\" data-start=\"3447\" data-end=\"3470\">Reach curved surfaces<\/li>\n<li data-section-id=\"12rw8lj\" data-start=\"3471\" data-end=\"3491\">Enter deeper areas<\/li>\n<li data-section-id=\"1g9v0sj\" data-start=\"3492\" data-end=\"3510\">Move through fur<\/li>\n<li data-section-id=\"sb8uvf\" data-start=\"3511\" data-end=\"3542\">Provide a softer tactile feel<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"3544\" data-end=\"3583\">However, excessively long bristles can:<\/p>\n<ul data-start=\"3585\" data-end=\"3704\">\n<li data-section-id=\"pe62qz\" data-start=\"3585\" data-end=\"3616\">Fold over instead of cleaning<\/li>\n<li data-section-id=\"n5brdh\" data-start=\"3617\" data-end=\"3638\">Recover more slowly<\/li>\n<li data-section-id=\"hdnx7t\" data-start=\"3639\" data-end=\"3673\">Tangle with neighboring bristles<\/li>\n<li data-section-id=\"nfolyx\" data-start=\"3674\" data-end=\"3704\">Feel unstable under pressure<\/li>\n<\/ul>\n<h3 dir=\"auto\" data-section-id=\"190ynif\" data-start=\"3706\" data-end=\"3726\">Shorter Bristles<\/h3>\n<p dir=\"auto\" data-start=\"3728\" data-end=\"3774\">Shorter bristles usually feel more supportive.<\/p>\n<p dir=\"auto\" data-start=\"3776\" data-end=\"3793\">They may provide:<\/p>\n<ul data-start=\"3795\" data-end=\"3881\">\n<li data-section-id=\"1mmw2o5\" data-start=\"3795\" data-end=\"3824\">More direct surface contact<\/li>\n<li data-section-id=\"1vywwxe\" data-start=\"3825\" data-end=\"3849\">Better shape stability<\/li>\n<li data-section-id=\"1cui730\" data-start=\"3850\" data-end=\"3881\">Stronger local scrubbing feel<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"3883\" data-end=\"3959\">But if they are too short and thick, the brush may feel unnecessarily rigid.<\/p>\n<p dir=\"auto\" data-start=\"3961\" data-end=\"4045\">The correct length therefore depends on both cleaning function and bristle diameter.<\/p>\n<h2 dir=\"auto\" data-section-id=\"uoe2f\" data-start=\"4047\" data-end=\"4101\"><span class=\"ez-toc-section\" id=\"How_Does_Bristle_Diameter_Change_the_Cleaning_Feel\"><\/span>How Does Bristle Diameter Change the Cleaning Feel?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"4103\" data-end=\"4198\">Two bristles with the same length can behave very differently if their diameters are different.<\/p>\n<p dir=\"auto\" data-start=\"4200\" data-end=\"4246\">A thinner bristle generally bends more easily.<\/p>\n<p dir=\"auto\" data-start=\"4248\" data-end=\"4306\">A thicker bristle generally resists bending more strongly.<\/p>\n<p dir=\"auto\" data-start=\"4308\" data-end=\"4406\">However, simply increasing diameter to improve durability can create a brush that feels too stiff.<\/p>\n<p dir=\"auto\" data-start=\"4408\" data-end=\"4493\">Likewise, making every bristle very thin may reduce support and create poor recovery.<\/p>\n<p dir=\"auto\" data-start=\"4495\" data-end=\"4537\">The design team should therefore evaluate:<\/p>\n<ul data-start=\"4539\" data-end=\"4635\">\n<li data-section-id=\"bfusvs\" data-start=\"4539\" data-end=\"4557\">Bristle diameter<\/li>\n<li data-section-id=\"ver5v\" data-start=\"4558\" data-end=\"4574\">Bristle length<\/li>\n<li data-section-id=\"od7j0k\" data-start=\"4575\" data-end=\"4594\">Silicone hardness<\/li>\n<li data-section-id=\"111eoee\" data-start=\"4595\" data-end=\"4615\">Number of bristles<\/li>\n<li data-section-id=\"i5poug\" data-start=\"4616\" data-end=\"4635\">Cleaning pressure<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"4637\" data-end=\"4646\">together.<\/p>\n<p dir=\"auto\" data-start=\"4648\" data-end=\"4719\">The desired result is controlled movement rather than maximum softness.<\/p>\n<h2 dir=\"auto\" data-section-id=\"9r2j5i\" data-start=\"4721\" data-end=\"4757\"><span class=\"ez-toc-section\" id=\"Why_Is_Bristle_Spacing_Important\"><\/span>Why Is Bristle Spacing Important?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"4759\" data-end=\"4804\">Spacing affects how individual bristles move.<\/p>\n<p dir=\"auto\" data-start=\"4806\" data-end=\"4841\">If bristles are packed too closely:<\/p>\n<ul data-start=\"4843\" data-end=\"5037\">\n<li data-section-id=\"1zj81s\" data-start=\"4843\" data-end=\"4894\">Neighboring bristles may press against each other<\/li>\n<li data-section-id=\"1l7niwq\" data-start=\"4895\" data-end=\"4942\">Water and residue can be harder to rinse away<\/li>\n<li data-section-id=\"1le2tvh\" data-start=\"4943\" data-end=\"4994\">The bristle field can behave like one stiff block<\/li>\n<li data-section-id=\"48pszx\" data-start=\"4995\" data-end=\"5037\">Visual inspection becomes more difficult<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"5039\" data-end=\"5062\">If spacing is too wide:<\/p>\n<ul data-start=\"5064\" data-end=\"5167\">\n<li data-section-id=\"1hdt29o\" data-start=\"5064\" data-end=\"5106\">Cleaning contact may become inconsistent<\/li>\n<li data-section-id=\"nfagia\" data-start=\"5107\" data-end=\"5139\">Large gaps can reduce coverage<\/li>\n<li data-section-id=\"1qmk3na\" data-start=\"5140\" data-end=\"5167\">The brush may feel sparse<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"5169\" data-end=\"5275\">A good layout provides enough independent bristle movement while still maintaining useful contact density.<\/p>\n<p dir=\"auto\" data-start=\"5277\" data-end=\"5416\">For cleaning products exposed to water, spacing should also support <a href=\"https:\/\/www.lyasilicone.com\/ru\/silicone-product-drainage-easy-clean-design\/\"><strong data-start=\"5345\" data-end=\"5366\">easy-clean design<\/strong><\/a> rather than creating unnecessarily tight pockets.<\/p>\n<h2 dir=\"auto\" data-section-id=\"260f0l\" data-start=\"5418\" data-end=\"5454\"><span class=\"ez-toc-section\" id=\"Why_Is_the_Bristle_Root_Critical\"><\/span>Why Is the Bristle Root Critical?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"5456\" data-end=\"5514\">The root is where each bristle connects to the brush head.<\/p>\n<p dir=\"auto\" data-start=\"5516\" data-end=\"5556\">This is often the highest-stress region.<\/p>\n<p dir=\"auto\" data-start=\"5558\" data-end=\"5648\">Every time the bristle bends, the root transfers that movement into the main product body.<\/p>\n<p dir=\"auto\" data-start=\"5650\" data-end=\"5683\">A poor root structure may create:<\/p>\n<ul data-start=\"5685\" data-end=\"5790\">\n<li data-section-id=\"12tvrus\" data-start=\"5685\" data-end=\"5713\">Local stress concentration<\/li>\n<li data-section-id=\"8oky5b\" data-start=\"5714\" data-end=\"5733\">Permanent bending<\/li>\n<li data-section-id=\"1gmsm7o\" data-start=\"5734\" data-end=\"5753\">Surface whitening<\/li>\n<li data-section-id=\"1frxt1a\" data-start=\"5754\" data-end=\"5772\">Crack initiation<\/li>\n<li data-section-id=\"d08t\" data-start=\"5773\" data-end=\"5790\">Bristle tearing<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"5792\" data-end=\"5931\">Instead of using a sharp 90-degree transition, the bristle root should usually be reviewed with a smooth transition and appropriate radius.<\/p>\n<p dir=\"auto\" data-start=\"5933\" data-end=\"5993\">This does not mean making the entire root excessively thick.<\/p>\n<p dir=\"auto\" data-start=\"5995\" data-end=\"6049\">The objective is to distribute bending more gradually.<\/p>\n<p dir=\"auto\" data-start=\"5995\" data-end=\"6049\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-11268\" src=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-300x300.jpg\" alt=\"Silicone brush bristle root radius and geometry design\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-300x300.jpg 300w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-150x150.jpg 150w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-768x768.jpg 768w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-12x12.jpg 12w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-600x600.jpg 600w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg-100x100.jpg 100w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-bristle-root-radius-design.jpg.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2 dir=\"auto\" data-section-id=\"1cljp1x\" data-start=\"6051\" data-end=\"6112\"><span class=\"ez-toc-section\" id=\"How_Should_Root_Radius_and_Bristle_Diameter_Work_Together\"><\/span>How Should Root Radius and Bristle Diameter Work Together?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"6114\" data-end=\"6195\">A very large root radius on a tiny bristle may make the base unnecessarily bulky.<\/p>\n<p dir=\"auto\" data-start=\"6197\" data-end=\"6279\">A very small root radius on a thick bristle may create a concentrated stress area.<\/p>\n<p dir=\"auto\" data-start=\"6281\" data-end=\"6339\">The transition should therefore match the bristle section.<\/p>\n<p dir=\"auto\" data-start=\"6341\" data-end=\"6388\">During design review, engineers should inspect:<\/p>\n<ul data-start=\"6390\" data-end=\"6491\">\n<li data-section-id=\"2ncxva\" data-start=\"6390\" data-end=\"6403\">Root radius<\/li>\n<li data-section-id=\"bfusvs\" data-start=\"6404\" data-end=\"6422\">Bristle diameter<\/li>\n<li data-section-id=\"euk57s\" data-start=\"6423\" data-end=\"6451\">Local brush-head thickness<\/li>\n<li data-section-id=\"1m38j5q\" data-start=\"6452\" data-end=\"6469\">Bristle spacing<\/li>\n<li data-section-id=\"8virba\" data-start=\"6470\" data-end=\"6491\">Demolding direction<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"6493\" data-end=\"6590\">The root also needs enough room so adjacent bristles do not merge into a difficult-to-clean base.<\/p>\n<h2 dir=\"auto\" data-section-id=\"itiahz\" data-start=\"6592\" data-end=\"6649\"><span class=\"ez-toc-section\" id=\"How_Does_Silicone_Hardness_Affect_Bristle_Performance\"><\/span>How Does Silicone Hardness Affect Bristle Performance?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"6651\" data-end=\"6744\">The same bristle geometry can behave very differently with a different <a href=\"https:\/\/www.lyasilicone.com\/ru\/how-to-choose-silicone-hardness-custom-products\/\"><strong data-start=\"6722\" data-end=\"6743\">silicone hardness<\/strong><\/a>.<\/p>\n<p dir=\"auto\" data-start=\"6746\" data-end=\"6776\">A softer silicone may provide:<\/p>\n<ul data-start=\"6778\" data-end=\"6851\">\n<li data-section-id=\"1pzqha6\" data-start=\"6778\" data-end=\"6803\">Gentler surface contact<\/li>\n<li data-section-id=\"1gf3im3\" data-start=\"6804\" data-end=\"6828\">Easier bristle bending<\/li>\n<li data-section-id=\"13kvtvn\" data-start=\"6829\" data-end=\"6851\">Lower local pressure<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"6853\" data-end=\"6876\">But it can also create:<\/p>\n<ul data-start=\"6878\" data-end=\"6964\">\n<li data-section-id=\"vldede\" data-start=\"6878\" data-end=\"6898\">Excessive collapse<\/li>\n<li data-section-id=\"13db3nf\" data-start=\"6899\" data-end=\"6916\">Slower recovery<\/li>\n<li data-section-id=\"1isesgx\" data-start=\"6917\" data-end=\"6964\">Less effective scrubbing in some applications<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"6966\" data-end=\"6996\">A firmer silicone may provide:<\/p>\n<ul data-start=\"6998\" data-end=\"7073\">\n<li data-section-id=\"1bz44fu\" data-start=\"6998\" data-end=\"7025\">Better bristle definition<\/li>\n<li data-section-id=\"1g0q0ch\" data-start=\"7026\" data-end=\"7054\">Faster structural recovery<\/li>\n<li data-section-id=\"1mfxk5o\" data-start=\"7055\" data-end=\"7073\">Stronger contact<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"7075\" data-end=\"7146\">but can feel too aggressive if the geometry is already short and thick.<\/p>\n<p dir=\"auto\" data-start=\"7148\" data-end=\"7250\">Hardness should therefore be selected together with molded geometry, not as an isolated specification.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1skmknv\" data-start=\"7252\" data-end=\"7301\"><span class=\"ez-toc-section\" id=\"Should_Every_Bristle_on_the_Brush_Be_the_Same\"><\/span>Should Every Bristle on the Brush Be the Same?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"7303\" data-end=\"7319\">Not necessarily.<\/p>\n<p dir=\"auto\" data-start=\"7321\" data-end=\"7381\">Some brush products can benefit from multiple bristle zones.<\/p>\n<p dir=\"auto\" data-start=\"7383\" data-end=\"7423\">For example, a pet bath brush might use:<\/p>\n<ul data-start=\"7425\" data-end=\"7550\">\n<li data-section-id=\"mfqigh\" data-start=\"7425\" data-end=\"7465\">Longer flexible bristles in the center<\/li>\n<li data-section-id=\"11mc3yx\" data-start=\"7466\" data-end=\"7516\">Shorter supporting bristles around the perimeter<\/li>\n<li data-section-id=\"t1gn74\" data-start=\"7517\" data-end=\"7550\">Massage nubs in a separate zone<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"7552\" data-end=\"7577\">A bottle brush might use:<\/p>\n<ul data-start=\"7579\" data-end=\"7672\">\n<li data-section-id=\"3kobvu\" data-start=\"7579\" data-end=\"7601\">Longer side bristles<\/li>\n<li data-section-id=\"m3hzno\" data-start=\"7602\" data-end=\"7624\">Shorter tip bristles<\/li>\n<li data-section-id=\"1vxwtds\" data-start=\"7625\" data-end=\"7672\">A different geometry near the end of the head<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"7674\" data-end=\"7754\">However, adding more bristle types also increases design and tooling complexity.<\/p>\n<p dir=\"auto\" data-start=\"7756\" data-end=\"7816\">Each additional zone should have a clear functional purpose.<\/p>\n<p dir=\"auto\" data-start=\"7818\" data-end=\"7874\">A complicated brush is not automatically a better brush.<\/p>\n<h2 dir=\"auto\" data-section-id=\"t4754u\" data-start=\"7876\" data-end=\"7915\"><span class=\"ez-toc-section\" id=\"How_Should_Bristle_Tips_Be_Designed\"><\/span>How Should Bristle Tips Be Designed?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"7917\" data-end=\"7953\">The tip is the direct contact point.<\/p>\n<p dir=\"auto\" data-start=\"7955\" data-end=\"8038\">For soft silicone cleaning products, the tip should generally avoid sharp geometry.<\/p>\n<p dir=\"auto\" data-start=\"8040\" data-end=\"8068\">Possible tip shapes include:<\/p>\n<ul data-start=\"8070\" data-end=\"8149\">\n<li data-section-id=\"ax0svf\" data-start=\"8070\" data-end=\"8079\">Rounded<\/li>\n<li data-section-id=\"1g2p1al\" data-start=\"8080\" data-end=\"8093\">Dome-shaped<\/li>\n<li data-section-id=\"1ijimam\" data-start=\"8094\" data-end=\"8116\">Soft tapered profile<\/li>\n<li data-section-id=\"3ffc5b\" data-start=\"8117\" data-end=\"8149\">Slightly flattened rounded tip<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"8151\" data-end=\"8171\">Very sharp tips may:<\/p>\n<ul data-start=\"8173\" data-end=\"8265\">\n<li data-section-id=\"1ypaim5\" data-start=\"8173\" data-end=\"8193\">Feel uncomfortable<\/li>\n<li data-section-id=\"34fhzd\" data-start=\"8194\" data-end=\"8220\">Be visually inconsistent<\/li>\n<li data-section-id=\"14nzlf4\" data-start=\"8221\" data-end=\"8265\">Become more difficult to mold consistently<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"8267\" data-end=\"8330\">The final tip design should match the intended contact surface.<\/p>\n<p dir=\"auto\" data-start=\"8332\" data-end=\"8403\">For pet care products, the goal may be gentle skin and fur interaction.<\/p>\n<p dir=\"auto\" data-start=\"8405\" data-end=\"8495\">For bottle brushes, the goal may be effective contact without unnecessary scratching risk.<\/p>\n<h2 dir=\"auto\" data-section-id=\"3shr0j\" data-start=\"8497\" data-end=\"8549\"><span class=\"ez-toc-section\" id=\"How_Do_Bristles_Interact_With_Curved_Brush_Heads\"><\/span>How Do Bristles Interact With Curved Brush Heads?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"8551\" data-end=\"8613\">A flat bristle layout may work differently from a curved head.<\/p>\n<p dir=\"auto\" data-start=\"8615\" data-end=\"8703\">On an oval or domed pet bath brush, bristles can point in slightly different directions.<\/p>\n<p dir=\"auto\" data-start=\"8705\" data-end=\"8757\">This may help the brush follow curved body surfaces.<\/p>\n<p dir=\"auto\" data-start=\"8759\" data-end=\"8784\">However, it also changes:<\/p>\n<ul data-start=\"8786\" data-end=\"8860\">\n<li data-section-id=\"1m38j5q\" data-start=\"8786\" data-end=\"8803\">Bristle spacing<\/li>\n<li data-section-id=\"ng50a1\" data-start=\"8804\" data-end=\"8819\">Contact angle<\/li>\n<li data-section-id=\"73r1sp\" data-start=\"8820\" data-end=\"8838\">Effective length<\/li>\n<li data-section-id=\"8virba\" data-start=\"8839\" data-end=\"8860\">Demolding direction<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"8862\" data-end=\"8992\">The bristle array should therefore be created together with the brush-head geometry rather than added after the body is finalized.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1tcl755\" data-start=\"8994\" data-end=\"9050\"><span class=\"ez-toc-section\" id=\"How_Should_Bristles_Be_Designed_for_a_Pet_Bath_Brush\"><\/span>How Should Bristles Be Designed for a Pet Bath Brush?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"9052\" data-end=\"9120\">A <a href=\"https:\/\/www.lyasilicone.com\/ru\/product\/custom-silicone-pet-bath-brush-manufacturer\/\"><strong data-start=\"9054\" data-end=\"9081\">silicone pet bath brush<\/strong><\/a> may need to perform several functions:<\/p>\n<ul data-start=\"9122\" data-end=\"9223\">\n<li data-section-id=\"1bo9m9k\" data-start=\"9122\" data-end=\"9142\">Distribute shampoo<\/li>\n<li data-section-id=\"8il8uj\" data-start=\"9143\" data-end=\"9164\">Massage the surface<\/li>\n<li data-section-id=\"1g9v0sj\" data-start=\"9165\" data-end=\"9183\">Move through fur<\/li>\n<li data-section-id=\"1il6id3\" data-start=\"9184\" data-end=\"9197\">Loosen dirt<\/li>\n<li data-section-id=\"1ey2s1b\" data-start=\"9198\" data-end=\"9223\">Help collect loose hair<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"9225\" data-end=\"9454\">LYA Silicone&#8217;s current pet bath brush product line already includes customizable short, long, dense and dual-texture bristle options, making this a relevant OEM structure for pet-care brands.<\/p>\n<p dir=\"auto\" data-start=\"9456\" data-end=\"9514\">For this type of product, the design team should evaluate:<\/p>\n<h3 dir=\"auto\" data-section-id=\"1nabsij\" data-start=\"9516\" data-end=\"9530\">Fur Length<\/h3>\n<p dir=\"auto\" data-start=\"9532\" data-end=\"9603\">Longer fur may require enough bristle length to reach through the coat.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1xqg9kz\" data-start=\"9605\" data-end=\"9625\">Contact Pressure<\/h3>\n<p dir=\"auto\" data-start=\"9627\" data-end=\"9717\">The bristle should flex under realistic hand pressure rather than remain completely rigid.<\/p>\n<h3 dir=\"auto\" data-section-id=\"6k8fyh\" data-start=\"9719\" data-end=\"9738\">Bristle Density<\/h3>\n<p dir=\"auto\" data-start=\"9740\" data-end=\"9806\">Dense layouts may increase contact but should still allow rinsing.<\/p>\n<h3 dir=\"auto\" data-section-id=\"urg2of\" data-start=\"9808\" data-end=\"9831\">Grip and Brush Body<\/h3>\n<p dir=\"auto\" data-start=\"9833\" data-end=\"9925\">The user needs enough control to apply pressure without crushing the bristle field unevenly.<\/p>\n<h3 dir=\"auto\" data-section-id=\"drfkhr\" data-start=\"9927\" data-end=\"9948\">Shampoo and Water<\/h3>\n<p dir=\"auto\" data-start=\"9950\" data-end=\"10003\">The brush should remain practical to rinse after use.<\/p>\n<h2 dir=\"auto\" data-section-id=\"m26u46\" data-start=\"10005\" data-end=\"10049\"><span class=\"ez-toc-section\" id=\"How_Is_a_Silicone_Bottle_Brush_Different\"><\/span>How Is a Silicone Bottle Brush Different?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"10051\" data-end=\"10102\">A bottle brush operates in a different environment.<\/p>\n<p dir=\"auto\" data-start=\"10104\" data-end=\"10127\">It may need to contact:<\/p>\n<ul data-start=\"10129\" data-end=\"10198\">\n<li data-section-id=\"170nkix\" data-start=\"10129\" data-end=\"10143\">Bottle walls<\/li>\n<li data-section-id=\"1rbpf28\" data-start=\"10144\" data-end=\"10167\">Curved bottom corners<\/li>\n<li data-section-id=\"pyejlb\" data-start=\"10168\" data-end=\"10182\">Narrow necks<\/li>\n<li data-section-id=\"68fej1\" data-start=\"10183\" data-end=\"10198\">Cup interiors<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"10200\" data-end=\"10328\">LYA Silicone currently also lists Silicone Bottle Brush within the Baby Products category.<\/p>\n<p dir=\"auto\" data-start=\"10330\" data-end=\"10380\">For bottle brushes, bristle design may prioritize:<\/p>\n<ul data-start=\"10382\" data-end=\"10484\">\n<li data-section-id=\"179hab9\" data-start=\"10382\" data-end=\"10389\">Reach<\/li>\n<li data-section-id=\"1a0ttrq\" data-start=\"10390\" data-end=\"10414\">Flexible head movement<\/li>\n<li data-section-id=\"x5dzen\" data-start=\"10415\" data-end=\"10445\">Contact with curved surfaces<\/li>\n<li data-section-id=\"1rl14vg\" data-start=\"10446\" data-end=\"10459\">Rinsability<\/li>\n<li data-section-id=\"mkrzyc\" data-start=\"10460\" data-end=\"10484\">Access to narrow areas<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"10486\" data-end=\"10610\">This is why copying a pet-brush bristle system onto a bottle brush would not automatically create good cleaning performance.<\/p>\n<h2 dir=\"auto\" data-section-id=\"2cvui8\" data-start=\"10612\" data-end=\"10675\"><span class=\"ez-toc-section\" id=\"Why_Is_Bristle_Density_Not_the_Same_as_Cleaning_Performance\"><\/span>Why Is Bristle Density Not the Same as Cleaning Performance?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"10677\" data-end=\"10726\">More bristles do not always mean better cleaning.<\/p>\n<p dir=\"auto\" data-start=\"10728\" data-end=\"10857\">Very high density can cause neighboring bristles to support each other so strongly that the entire surface becomes less flexible.<\/p>\n<p dir=\"auto\" data-start=\"10859\" data-end=\"10907\">It can also reduce the open space available for:<\/p>\n<ul data-start=\"10909\" data-end=\"10948\">\n<li data-section-id=\"17bexz1\" data-start=\"10909\" data-end=\"10916\">Water<\/li>\n<li data-section-id=\"1j44r1p\" data-start=\"10917\" data-end=\"10923\">Foam<\/li>\n<li data-section-id=\"1x95cx6\" data-start=\"10924\" data-end=\"10938\">Dirt release<\/li>\n<li data-section-id=\"clwx9q\" data-start=\"10939\" data-end=\"10948\">Rinsing<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"10950\" data-end=\"11033\">A lower-density design may sometimes allow each bristle to move more independently.<\/p>\n<p dir=\"auto\" data-start=\"11035\" data-end=\"11116\">The correct density should be determined by testing rather than appearance alone.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1eofunn\" data-start=\"11118\" data-end=\"11157\"><span class=\"ez-toc-section\" id=\"How_Do_Bristles_Affect_Mold_Filling\"><\/span>How Do Bristles Affect Mold Filling?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"11159\" data-end=\"11229\">A brush head may contain dozens or hundreds of small bristle cavities.<\/p>\n<p dir=\"auto\" data-start=\"11231\" data-end=\"11311\">This makes mold filling more demanding than molding a simple flat silicone part.<\/p>\n<p dir=\"auto\" data-start=\"11313\" data-end=\"11358\">The tooling and molding team should consider:<\/p>\n<ul data-start=\"11360\" data-end=\"11463\">\n<li data-section-id=\"bfusvs\" data-start=\"11360\" data-end=\"11378\">Bristle diameter<\/li>\n<li data-section-id=\"ver5v\" data-start=\"11379\" data-end=\"11395\">Bristle length<\/li>\n<li data-section-id=\"1iemnf9\" data-start=\"11396\" data-end=\"11410\">Cavity depth<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"11411\" data-end=\"11420\">Venting<\/li>\n<li data-section-id=\"1jqjp5j\" data-start=\"11421\" data-end=\"11432\">Flow path<\/li>\n<li data-section-id=\"16xcnft\" data-start=\"11433\" data-end=\"11463\">Local temperature conditions<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"11465\" data-end=\"11527\">Very fine bristles may be more difficult to fill consistently.<\/p>\n<p dir=\"auto\" data-start=\"11529\" data-end=\"11594\">If the tip or root does not form correctly, the product can show:<\/p>\n<ul data-start=\"11596\" data-end=\"11672\">\n<li data-section-id=\"1mdyc4e\" data-start=\"11596\" data-end=\"11612\">Short bristles<\/li>\n<li data-section-id=\"138xw9e\" data-start=\"11613\" data-end=\"11627\">Missing tips<\/li>\n<li data-section-id=\"xgaeyx\" data-start=\"11628\" data-end=\"11648\">Incomplete filling<\/li>\n<li data-section-id=\"1lcgh7f\" data-start=\"11649\" data-end=\"11672\">Local shape variation<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"11674\" data-end=\"11792\">Bristle geometry should therefore be reviewed during <a href=\"https:\/\/www.lyasilicone.com\/ru\/custom-silicone-mold-development-checklist\/\"><strong data-start=\"11727\" data-end=\"11763\">custom silicone mold development<\/strong><\/a> before tooling is finalized.<\/p>\n<h2 dir=\"auto\" data-section-id=\"r2rpel\" data-start=\"11794\" data-end=\"11830\"><span class=\"ez-toc-section\" id=\"How_Do_Bristles_Affect_Demolding\"><\/span>How Do Bristles Affect Demolding?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"11832\" data-end=\"11887\">After molding, the brush must be removed from the tool.<\/p>\n<p dir=\"auto\" data-start=\"11889\" data-end=\"11965\">A large number of long, thin silicone bristles may stretch during demolding.<\/p>\n<p dir=\"auto\" data-start=\"11967\" data-end=\"12023\">If the geometry is not suitable, this can contribute to:<\/p>\n<ul data-start=\"12025\" data-end=\"12096\">\n<li data-section-id=\"1nh4shg\" data-start=\"12025\" data-end=\"12045\">Bristle distortion<\/li>\n<li data-section-id=\"qbouq6\" data-start=\"12046\" data-end=\"12064\">Uneven direction<\/li>\n<li data-section-id=\"cey72f\" data-start=\"12065\" data-end=\"12080\">Local tearing<\/li>\n<li data-section-id=\"19uduek\" data-start=\"12081\" data-end=\"12096\">Slow recovery<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"12098\" data-end=\"12128\">The design team should review:<\/p>\n<ul data-start=\"12130\" data-end=\"12236\">\n<li data-section-id=\"ver5v\" data-start=\"12130\" data-end=\"12146\">Bristle length<\/li>\n<li data-section-id=\"1chu1d8\" data-start=\"12147\" data-end=\"12174\">Draft and cavity geometry<\/li>\n<li data-section-id=\"60soq\" data-start=\"12175\" data-end=\"12194\">Bristle direction<\/li>\n<li data-section-id=\"13y28gu\" data-start=\"12195\" data-end=\"12216\">Product flexibility<\/li>\n<li data-section-id=\"1845zk6\" data-start=\"12217\" data-end=\"12236\">Mold release path<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"12238\" data-end=\"12372\">The finished sample should be inspected after full recovery rather than immediately assuming every bent bristle is a permanent defect.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1pjr17p\" data-start=\"12374\" data-end=\"12424\"><span class=\"ez-toc-section\" id=\"What_Should_Brands_Test_During_Sample_Approval\"><\/span>What Should Brands Test During Sample Approval?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 dir=\"auto\" data-section-id=\"bkszm4\" data-start=\"12426\" data-end=\"12449\">Bristle Flexibility<\/h3>\n<p dir=\"auto\" data-start=\"12451\" data-end=\"12485\">Apply realistic cleaning pressure.<\/p>\n<p dir=\"auto\" data-start=\"12487\" data-end=\"12549\">Check whether the bristles bend without collapsing completely.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1chlksl\" data-start=\"12551\" data-end=\"12563\">Recovery<\/h3>\n<p dir=\"auto\" data-start=\"12565\" data-end=\"12654\">Release the load and observe whether the bristles return toward their original direction.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1c93g1f\" data-start=\"12656\" data-end=\"12674\">Root Condition<\/h3>\n<p dir=\"auto\" data-start=\"12676\" data-end=\"12732\">Inspect the base of the bristles after repeated flexing.<\/p>\n<p dir=\"auto\" data-start=\"12734\" data-end=\"12743\">Look for:<\/p>\n<ul data-start=\"12745\" data-end=\"12793\">\n<li data-section-id=\"6x7hb5\" data-start=\"12745\" data-end=\"12756\">Whitening<\/li>\n<li data-section-id=\"1v9yjkz\" data-start=\"12757\" data-end=\"12765\">Cracks<\/li>\n<li data-section-id=\"8oky5b\" data-start=\"12766\" data-end=\"12785\">Permanent bending<\/li>\n<li data-section-id=\"177z9jt\" data-start=\"12786\" data-end=\"12793\">Tears<\/li>\n<\/ul>\n<h3 dir=\"auto\" data-section-id=\"7ckym3\" data-start=\"12795\" data-end=\"12819\">Cleaning Performance<\/h3>\n<p dir=\"auto\" data-start=\"12821\" data-end=\"12883\">Test the brush using a representative surface or use scenario.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1xdsym8\" data-start=\"12885\" data-end=\"12896\">Rinsing<\/h3>\n<p dir=\"auto\" data-start=\"12898\" data-end=\"12981\">Wash the product and confirm whether residue can leave the spaces between bristles.<\/p>\n<h3 dir=\"auto\" data-section-id=\"14q82sm\" data-start=\"12983\" data-end=\"12998\">Tip Quality<\/h3>\n<p dir=\"auto\" data-start=\"13000\" data-end=\"13010\">Check for:<\/p>\n<ul data-start=\"13012\" data-end=\"13102\">\n<li data-section-id=\"nhra13\" data-start=\"13012\" data-end=\"13030\">Missing material<\/li>\n<li data-section-id=\"rx2she\" data-start=\"13031\" data-end=\"13056\">Sharp or irregular tips<\/li>\n<li data-section-id=\"skmg8t\" data-start=\"13057\" data-end=\"13080\">Short-filled bristles<\/li>\n<li data-section-id=\"u9r0to\" data-start=\"13081\" data-end=\"13102\">Visible deformation<\/li>\n<\/ul>\n<h3 dir=\"auto\" data-section-id=\"1258664\" data-start=\"13104\" data-end=\"13132\">Multi-Cavity Consistency<\/h3>\n<p dir=\"auto\" data-start=\"13134\" data-end=\"13185\">If the tool has multiple cavities, compare bristle:<\/p>\n<ul data-start=\"13187\" data-end=\"13241\">\n<li data-section-id=\"1p7clhw\" data-start=\"13187\" data-end=\"13195\">Length<\/li>\n<li data-section-id=\"1ndjl0w\" data-start=\"13196\" data-end=\"13205\">Density<\/li>\n<li data-section-id=\"1083or1\" data-start=\"13206\" data-end=\"13217\">Direction<\/li>\n<li data-section-id=\"q55e7f\" data-start=\"13218\" data-end=\"13228\">Recovery<\/li>\n<li data-section-id=\"eqp2xi\" data-start=\"13229\" data-end=\"13241\">Appearance<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"13243\" data-end=\"13260\">between cavities.<\/p>\n<p dir=\"auto\" data-start=\"13243\" data-end=\"13260\"><img decoding=\"async\" class=\"alignnone size-medium wp-image-11269\" src=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-300x300.jpg\" alt=\"Silicone brush bristle flexibility and recovery testing\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-300x300.jpg 300w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-150x150.jpg 150w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-768x768.jpg 768w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-12x12.jpg 12w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-600x600.jpg 600w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg-100x100.jpg 100w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/09\/silicone-brush-bristle-flex-recovery-test.jpg.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2 dir=\"auto\" data-section-id=\"1y4mp3j\" data-start=\"13262\" data-end=\"13314\"><span class=\"ez-toc-section\" id=\"Practical_Example_Custom_Silicone_Pet_Bath_Brush\"><\/span>Practical Example: Custom Silicone Pet Bath Brush<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"13316\" data-end=\"13366\">Consider an oval palm-style custom pet bath brush.<\/p>\n<p dir=\"auto\" data-start=\"13368\" data-end=\"13385\">The product uses:<\/p>\n<ul data-start=\"13387\" data-end=\"13492\">\n<li data-section-id=\"ik5wsn\" data-start=\"13387\" data-end=\"13413\">Soft matte silicone body<\/li>\n<li data-section-id=\"1nel82h\" data-start=\"13414\" data-end=\"13442\">Integrated hand-grip strap<\/li>\n<li data-section-id=\"1k8lnlh\" data-start=\"13443\" data-end=\"13472\">Dense oval cleaning surface<\/li>\n<li data-section-id=\"d6jam6\" data-start=\"13473\" data-end=\"13492\">Two bristle zones<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"13494\" data-end=\"13538\">The center contains longer rounded bristles.<\/p>\n<p dir=\"auto\" data-start=\"13540\" data-end=\"13601\">The outer area contains slightly shorter supporting bristles.<\/p>\n<h3 dir=\"auto\" data-section-id=\"vg24jo\" data-start=\"13603\" data-end=\"13635\">If All Bristles Are Too Long<\/h3>\n<p dir=\"auto\" data-start=\"13637\" data-end=\"13691\">The brush may feel very soft but provide weak contact.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1q0wsfe\" data-start=\"13693\" data-end=\"13736\">If All Bristles Are Too Short and Thick<\/h3>\n<p dir=\"auto\" data-start=\"13738\" data-end=\"13769\">The brush may feel overly firm.<\/p>\n<h3 dir=\"auto\" data-section-id=\"ezjejk\" data-start=\"13771\" data-end=\"13798\">If Spacing Is Too Tight<\/h3>\n<p dir=\"auto\" data-start=\"13800\" data-end=\"13859\">Shampoo and loose hair may be more difficult to rinse away.<\/p>\n<h3 dir=\"auto\" data-section-id=\"l26dri\" data-start=\"13861\" data-end=\"13884\">Optimized Structure<\/h3>\n<p dir=\"auto\" data-start=\"13886\" data-end=\"13912\">The final sample balances:<\/p>\n<ul data-start=\"13914\" data-end=\"14008\">\n<li data-section-id=\"ver5v\" data-start=\"13914\" data-end=\"13930\">Bristle length<\/li>\n<li data-section-id=\"qeskz3\" data-start=\"13931\" data-end=\"13941\">Diameter<\/li>\n<li data-section-id=\"1ndjl0w\" data-start=\"13942\" data-end=\"13951\">Density<\/li>\n<li data-section-id=\"2ncxva\" data-start=\"13952\" data-end=\"13965\">Root radius<\/li>\n<li data-section-id=\"od7j0k\" data-start=\"13966\" data-end=\"13985\">Silicone hardness<\/li>\n<li data-section-id=\"1sjxrau\" data-start=\"13986\" data-end=\"14008\">Brush-head curvature<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"14010\" data-end=\"14079\">The correct design is therefore a system, not one isolated dimension.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1j9l4f6\" data-start=\"14081\" data-end=\"14123\"><span class=\"ez-toc-section\" id=\"Silicone_Brush_Bristle_Design_Checklist\"><\/span>Silicone Brush Bristle Design Checklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"group TyagGW_tableContainer\" dir=\"auto\">\n<div class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" dir=\"auto\" data-start=\"14125\" data-end=\"14979\">\n<thead data-start=\"14125\" data-end=\"14165\">\n<tr data-start=\"14125\" data-end=\"14165\">\n<th class=\"last:pe-10\" data-start=\"14125\" data-end=\"14132\" data-col-size=\"sm\">\u0410\u0440\u0442\u0438\u043a\u0443\u043b<\/th>\n<th class=\"last:pe-10\" data-start=\"14132\" data-end=\"14165\" data-col-size=\"md\">What the Brand Should Confirm<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"14176\" data-end=\"14979\">\n<tr data-start=\"14176\" data-end=\"14232\">\n<td data-start=\"14176\" data-end=\"14190\" data-col-size=\"sm\">\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435<\/td>\n<td data-start=\"14190\" data-end=\"14232\" data-col-size=\"md\">Bottle, pet care or other cleaning use<\/td>\n<\/tr>\n<tr data-start=\"14233\" data-end=\"14287\">\n<td data-start=\"14233\" data-end=\"14250\" data-col-size=\"sm\">Bristle length<\/td>\n<td data-start=\"14250\" data-end=\"14287\" data-col-size=\"md\">Appropriate reach and flexibility<\/td>\n<\/tr>\n<tr data-start=\"14288\" data-end=\"14331\">\n<td data-start=\"14288\" data-end=\"14299\" data-col-size=\"sm\">Diameter<\/td>\n<td data-start=\"14299\" data-end=\"14331\" data-col-size=\"md\">Balanced support and bending<\/td>\n<\/tr>\n<tr data-start=\"14332\" data-end=\"14387\">\n<td data-start=\"14332\" data-end=\"14342\" data-col-size=\"sm\">Density<\/td>\n<td data-start=\"14342\" data-end=\"14387\" data-col-size=\"md\">Enough contact without excessive crowding<\/td>\n<\/tr>\n<tr data-start=\"14388\" data-end=\"14441\">\n<td data-start=\"14388\" data-end=\"14398\" data-col-size=\"sm\">Spacing<\/td>\n<td data-start=\"14398\" data-end=\"14441\" data-col-size=\"md\">Allows independent movement and rinsing<\/td>\n<\/tr>\n<tr data-start=\"14442\" data-end=\"14491\">\n<td data-start=\"14442\" data-end=\"14456\" data-col-size=\"sm\">Root radius<\/td>\n<td data-start=\"14456\" data-end=\"14491\" data-col-size=\"md\">Smooth repeated-flex transition<\/td>\n<\/tr>\n<tr data-start=\"14492\" data-end=\"14551\">\n<td data-start=\"14492\" data-end=\"14504\" data-col-size=\"sm\">Tip shape<\/td>\n<td data-start=\"14504\" data-end=\"14551\" data-col-size=\"md\">Rounded and appropriate for contact surface<\/td>\n<\/tr>\n<tr data-start=\"14552\" data-end=\"14609\">\n<td data-start=\"14552\" data-end=\"14563\" data-col-size=\"sm\">Hardness<\/td>\n<td data-start=\"14563\" data-end=\"14609\" data-col-size=\"md\">Validated with the actual bristle geometry<\/td>\n<\/tr>\n<tr data-start=\"14610\" data-end=\"14666\">\n<td data-start=\"14610\" data-end=\"14629\" data-col-size=\"sm\">Brush-head shape<\/td>\n<td data-start=\"14629\" data-end=\"14666\" data-col-size=\"md\">Compatible with bristle direction<\/td>\n<\/tr>\n<tr data-start=\"14667\" data-end=\"14715\">\n<td data-start=\"14667\" data-end=\"14682\" data-col-size=\"sm\">Mold filling<\/td>\n<td data-start=\"14682\" data-end=\"14715\" data-col-size=\"md\">Fine bristles form completely<\/td>\n<\/tr>\n<tr data-start=\"14716\" data-end=\"14762\">\n<td data-start=\"14716\" data-end=\"14728\" data-col-size=\"sm\">Demolding<\/td>\n<td data-start=\"14728\" data-end=\"14762\" data-col-size=\"md\">Bristles recover after release<\/td>\n<\/tr>\n<tr data-start=\"14763\" data-end=\"14813\">\n<td data-start=\"14763\" data-end=\"14774\" data-col-size=\"sm\">Recovery<\/td>\n<td data-start=\"14774\" data-end=\"14813\" data-col-size=\"md\">Returns toward intended orientation<\/td>\n<\/tr>\n<tr data-start=\"14814\" data-end=\"14869\">\n<td data-start=\"14814\" data-end=\"14825\" data-col-size=\"sm\">\u041e\u0447\u0438\u0441\u0442\u043a\u0430<\/td>\n<td data-start=\"14825\" data-end=\"14869\" data-col-size=\"md\">Residue can rinse from the bristle field<\/td>\n<\/tr>\n<tr data-start=\"14870\" data-end=\"14913\">\n<td data-start=\"14870\" data-end=\"14881\" data-col-size=\"sm\">Cavities<\/td>\n<td data-start=\"14881\" data-end=\"14913\" data-col-size=\"md\">Bristle consistency verified<\/td>\n<\/tr>\n<tr data-start=\"14914\" data-end=\"14979\">\n<td data-start=\"14914\" data-end=\"14926\" data-col-size=\"sm\">\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430<\/td>\n<td data-start=\"14926\" data-end=\"14979\" data-col-size=\"md\">Bristles are not stored under harmful compression<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2 dir=\"auto\" data-section-id=\"1imcd23\" data-start=\"14981\" data-end=\"15034\"><span class=\"ez-toc-section\" id=\"How_LYA_Silicone_Supports_Custom_Brush_Development\"><\/span>How LYA Silicone Supports Custom Brush Development<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"15036\" data-end=\"15171\">For <a href=\"https:\/\/www.lyasilicone.com\/ru\/oem-service\/\"><strong data-start=\"15040\" data-end=\"15067\">OEM and ODM development<\/strong><\/a>, silicone brush structures can be reviewed from product function through tooling and sample validation.<\/p>\n<p dir=\"auto\" data-start=\"15173\" data-end=\"15200\">Project review may include:<\/p>\n<ul data-start=\"15202\" data-end=\"15526\">\n<li data-section-id=\"jgo2mk\" data-start=\"15202\" data-end=\"15221\">Brush application<\/li>\n<li data-section-id=\"18gxmvk\" data-start=\"15222\" data-end=\"15245\">Brush-head dimensions<\/li>\n<li data-section-id=\"ver5v\" data-start=\"15246\" data-end=\"15262\">Bristle length<\/li>\n<li data-section-id=\"bfusvs\" data-start=\"15263\" data-end=\"15281\">Bristle diameter<\/li>\n<li data-section-id=\"1l9ui9z\" data-start=\"15282\" data-end=\"15299\">Bristle density<\/li>\n<li data-section-id=\"1m38j5q\" data-start=\"15300\" data-end=\"15317\">Bristle spacing<\/li>\n<li data-section-id=\"2ncxva\" data-start=\"15318\" data-end=\"15331\">Root radius<\/li>\n<li data-section-id=\"1xmh1u2\" data-start=\"15332\" data-end=\"15343\">Tip shape<\/li>\n<li data-section-id=\"od7j0k\" data-start=\"15344\" data-end=\"15363\">Silicone hardness<\/li>\n<li data-section-id=\"1tv0rlt\" data-start=\"15364\" data-end=\"15387\">Handle or grip design<\/li>\n<li data-section-id=\"vnvfht\" data-start=\"15388\" data-end=\"15406\">Mold development<\/li>\n<li data-section-id=\"qc4jjs\" data-start=\"15407\" data-end=\"15423\">Sample testing<\/li>\n<li data-section-id=\"1744v3x\" data-start=\"15424\" data-end=\"15445\">Recovery evaluation<\/li>\n<li data-section-id=\"1orl0tz\" data-start=\"15446\" data-end=\"15463\">Cleaning review<\/li>\n<li data-section-id=\"d67ft4\" data-start=\"15464\" data-end=\"15485\">Color customization<\/li>\n<li data-section-id=\"1jvsno7\" data-start=\"15486\" data-end=\"15497\">\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430<\/li>\n<li data-section-id=\"1bn4ab8\" data-start=\"15498\" data-end=\"15526\">Mass-production inspection<\/li>\n<\/ul>\n<p dir=\"auto\" data-start=\"15528\" data-end=\"15590\">The objective is not to create the largest number of bristles.<\/p>\n<p dir=\"auto\" data-start=\"15592\" data-end=\"15725\">The objective is to create a controlled bristle system that performs the intended cleaning function and can be produced consistently.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1r8frcv\" data-start=\"15727\" data-end=\"15756\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 dir=\"auto\" data-section-id=\"1d0s7d2\" data-start=\"15758\" data-end=\"15805\">Are longer silicone bristles always softer?<\/h3>\n<p dir=\"auto\" data-start=\"15807\" data-end=\"15955\">Generally, increasing unsupported bristle length can increase flexibility, but diameter, hardness and root structure also affect the final behavior.<\/p>\n<h3 dir=\"auto\" data-section-id=\"lk8grh\" data-start=\"15957\" data-end=\"15995\">Are thicker bristles more durable?<\/h3>\n<p dir=\"auto\" data-start=\"15997\" data-end=\"16143\">They may resist bending more strongly, but durability depends on the complete geometry. An excessively thick bristle can make the brush too stiff.<\/p>\n<h3 dir=\"auto\" data-section-id=\"154gc0a\" data-start=\"16145\" data-end=\"16184\">Why do silicone bristles stay bent?<\/h3>\n<p dir=\"auto\" data-start=\"16186\" data-end=\"16338\">Possible causes include excessive length, very soft material, unsuitable root geometry, demolding deformation or prolonged compression during packaging.<\/p>\n<h3 dir=\"auto\" data-section-id=\"9qu06u\" data-start=\"16340\" data-end=\"16400\">Should silicone brush bristles all have the same length?<\/h3>\n<p dir=\"auto\" data-start=\"16402\" data-end=\"16521\">Not necessarily. Some products benefit from multiple functional zones, but every variation should have a clear purpose.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1d7m62m\" data-start=\"16523\" data-end=\"16571\">Why do silicone bristles tear near the base?<\/h3>\n<p dir=\"auto\" data-start=\"16573\" data-end=\"16713\">The root experiences repeated bending stress. Sharp transitions, insufficient support or excessive deformation can increase local tear risk.<\/p>\n<h3 dir=\"auto\" data-section-id=\"1azldwk\" data-start=\"16715\" data-end=\"16767\">Are dense silicone bristles better for cleaning?<\/h3>\n<p dir=\"auto\" data-start=\"16769\" data-end=\"16872\">Not automatically. Very dense bristles can reduce independent movement and make rinsing more difficult.<\/p>\n<h3 dir=\"auto\" data-section-id=\"wdna7x\" data-start=\"16874\" data-end=\"16941\">Should the bristle layout be finalized before mold development?<\/h3>\n<p dir=\"auto\" data-start=\"16943\" data-end=\"17028\">Yes. Bristle geometry directly affects mold cavities, filling, venting and demolding.<\/p>\n<h2 dir=\"auto\" data-section-id=\"1cuqlvl\" data-start=\"17030\" data-end=\"17087\"><span class=\"ez-toc-section\" id=\"Design_the_Bristle_System_Around_the_Cleaning_Function\"><\/span>Design the Bristle System Around the Cleaning Function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"auto\" data-start=\"17089\" data-end=\"17132\">Good silicone brush performance depends on:<\/p>\n<p dir=\"auto\" data-start=\"17134\" data-end=\"17249\"><strong data-start=\"17134\" data-end=\"17249\">Length \u2192 Diameter \u2192 Spacing \u2192 Density \u2192 Root Radius \u2192 Tip Shape \u2192 Hardness \u2192 Mold Filling \u2192 Recovery \u2192 Cleaning<\/strong><\/p>\n<p dir=\"auto\" data-start=\"17251\" data-end=\"17289\">These variables need to work together.<\/p>\n<p dir=\"auto\" data-start=\"17291\" data-end=\"17410\">A brush should not use more bristles simply to look premium, and it should not use longer bristles simply to feel soft.<\/p>\n<p dir=\"auto\" data-start=\"17412\" data-end=\"17700\">If you are developing a custom silicone bottle brush, pet bath brush or other molded cleaning product, <a href=\"https:\/\/www.lyasilicone.com\/ru\/contact\/\"><strong data-start=\"17515\" data-end=\"17529\">contact us<\/strong><\/a> with your reference design, target application, brush dimensions, preferred bristle concept, material requirements, color, packaging concept and estimated order quantity.<\/p>","protected":false},"excerpt":{"rendered":"<p>Answer Excerpt Good silicone brush bristle design depends on more than making the bristles soft. Bristle length, diameter, spacing, root [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11267,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Silicone Snack Cup Flap Design Guide for OEM Brands | LYA","_seopress_titles_desc":"Learn how bristle length, diameter, spacing, root radius, hardness and layout affect silicone brush flexibility, cleaning performance, recovery and OEM production.","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[36],"tags":[],"class_list":["post-11263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/posts\/11263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/comments?post=11263"}],"version-history":[{"count":2,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/posts\/11263\/revisions"}],"predecessor-version":[{"id":11270,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/posts\/11263\/revisions\/11270"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/media\/11267"}],"wp:attachment":[{"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/media?parent=11263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/categories?post=11263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ru\/wp-json\/wp\/v2\/tags?post=11263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}