{"id":10978,"date":"2026-08-21T02:08:09","date_gmt":"2026-08-21T02:08:09","guid":{"rendered":"https:\/\/www.lyasilicone.com\/?p=10978"},"modified":"2026-08-21T02:08:09","modified_gmt":"2026-08-21T02:08:09","slug":"lsr-vs-compression-molding-silicone-products","status":"publish","type":"post","link":"https:\/\/www.lyasilicone.com\/ja\/lsr-vs-compression-molding-silicone-products\/","title":{"rendered":"LSR Injection Molding vs. Compression Molding: Which Is Better for Custom Silicone Products?"},"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\">\u5185\u5bb9<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#What_Is_LSR_Injection_Molding\" title=\"What Is LSR Injection Molding?\">What Is LSR Injection Molding?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#What_Is_Silicone_Compression_Molding\" title=\"What Is Silicone Compression Molding?\">What Is Silicone Compression Molding?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#What_Is_the_Main_Difference_Between_the_Two_Processes\" title=\"What Is the Main Difference Between the Two Processes?\">What Is the Main Difference Between the Two Processes?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Which_Process_Is_Better_for_Complex_Geometry\" title=\"Which Process Is Better for Complex Geometry?\">Which Process Is Better for Complex Geometry?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Which_Process_Is_Better_for_Larger_or_Simpler_Products\" title=\"Which Process Is Better for Larger or Simpler Products?\">Which Process Is Better for Larger or Simpler Products?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#How_Does_Tooling_Differ\" title=\"How Does Tooling Differ?\">How Does Tooling Differ?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Which_Process_Has_Better_Automation\" title=\"Which Process Has Better Automation?\">Which Process Has Better Automation?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Does_LSR_Always_Provide_Better_Dimensional_Accuracy\" title=\"Does LSR Always Provide Better Dimensional Accuracy?\">Does LSR Always Provide Better Dimensional Accuracy?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#What_About_Flash_and_Parting_Lines\" title=\"What About Flash and Parting Lines?\">What About Flash and Parting Lines?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Example_1_Custom_Silicone_Baby_Pacifier\" title=\"Example 1: Custom Silicone Baby Pacifier\">Example 1: Custom Silicone Baby Pacifier<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Example_2_Silicone_Baby_Feeding_Mat\" title=\"Example 2: Silicone Baby Feeding Mat\">Example 2: Silicone Baby Feeding Mat<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#What_About_Silicone_Pet_Products\" title=\"What About Silicone Pet Products?\">What About Silicone Pet Products?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#How_Should_Buyers_Choose_Between_LSR_and_Compression_Molding\" title=\"How Should Buyers Choose Between LSR and Compression Molding?\">How Should Buyers Choose Between LSR and Compression Molding?<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#LSR_vs_Compression_Molding_Comparison\" title=\"LSR vs Compression Molding Comparison\">LSR vs Compression Molding Comparison<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#Common_Buyer_Mistakes\" title=\"Common Buyer Mistakes\">Common Buyer Mistakes<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#How_LYA_Silicone_Supports_Process_Selection\" title=\"How LYA Silicone Supports Process Selection\">How LYA Silicone Supports Process Selection<\/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\/ja\/lsr-vs-compression-molding-silicone-products\/#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-18\" href=\"https:\/\/www.lyasilicone.com\/ja\/lsr-vs-compression-molding-silicone-products\/#Choose_the_Process_After_Reviewing_the_Product\" title=\"Choose the Process After Reviewing the Product\">Choose the Process After Reviewing the Product<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"92fswn\" data-start=\"1470\" data-end=\"1488\">Answer Excerpt<\/h3>\n<p data-start=\"1490\" data-end=\"2044\">LSR injection molding and silicone compression molding can both produce high-quality <a href=\"https:\/\/www.lyasilicone.com\/ja\/\"><strong data-start=\"1575\" data-end=\"1603\">\u30ab\u30b9\u30bf\u30e0\u30b7\u30ea\u30b3\u30fc\u30f3\u88fd\u54c1<\/strong><\/a>, but they suit different project requirements. LSR injection molding is often considered for thin features, complex geometry, automation and repeatable high-volume production. Compression molding is commonly suitable for relatively simple solid silicone products, larger parts and projects where tooling complexity and production flexibility are important. The final process should be selected during DFM based on the actual product design.<\/p>\n<p data-start=\"2046\" data-end=\"2113\">When requesting a silicone product quotation, buyers sometimes ask:<\/p>\n<blockquote data-start=\"2115\" data-end=\"2186\">\n<p data-start=\"2117\" data-end=\"2186\">Which process is better\u2014LSR injection molding or compression molding?<\/p>\n<\/blockquote>\n<p data-start=\"2188\" data-end=\"2222\">There is no single correct answer.<\/p>\n<p data-start=\"2224\" data-end=\"2322\">A baby pacifier, silicone bib, pet feeding mat and collapsible cup do not have the same structure.<\/p>\n<p data-start=\"2324\" data-end=\"2367\">The correct manufacturing route depends on:<\/p>\n<ul data-start=\"2369\" data-end=\"2563\">\n<li data-section-id=\"p131vd\" data-start=\"2369\" data-end=\"2387\">Product geometry<\/li>\n<li data-section-id=\"v2almr\" data-start=\"2388\" data-end=\"2398\">\u7d20\u6750<\/li>\n<li data-section-id=\"6f79ns\" data-start=\"2399\" data-end=\"2415\">Wall thickness<\/li>\n<li data-section-id=\"11jivm3\" data-start=\"2416\" data-end=\"2431\">Fine features<\/li>\n<li data-section-id=\"1vsqkwa\" data-start=\"2432\" data-end=\"2449\">Annual quantity<\/li>\n<li data-section-id=\"1qqf79x\" data-start=\"2450\" data-end=\"2466\">Tooling budget<\/li>\n<li data-section-id=\"2l9x54\" data-start=\"2467\" data-end=\"2491\">Automation requirement<\/li>\n<li data-section-id=\"ho617t\" data-start=\"2492\" data-end=\"2516\">Appearance requirement<\/li>\n<li data-section-id=\"17x8rgy\" data-start=\"2517\" data-end=\"2538\">Dimensional control<\/li>\n<li data-section-id=\"15tk7np\" data-start=\"2539\" data-end=\"2563\">Production consistency<\/li>\n<\/ul>\n<p data-start=\"2565\" data-end=\"2628\">The process should follow the product\u2014not the other way around.<\/p>\n<hr data-start=\"2630\" data-end=\"2633\" \/>\n<h2 data-section-id=\"1rj3bqy\" data-start=\"2635\" data-end=\"2668\"><span class=\"ez-toc-section\" id=\"What_Is_LSR_Injection_Molding\"><\/span>What Is LSR Injection Molding?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2670\" data-end=\"2708\">LSR stands for Liquid Silicone Rubber.<\/p>\n<p data-start=\"2710\" data-end=\"2889\">LSR is typically supplied as a two-component liquid material. During production, the components are metered and mixed before the silicone is injected into a heated mold and cured.<\/p>\n<p data-start=\"2891\" data-end=\"2938\">This production method can be highly automated.<\/p>\n<p data-start=\"2940\" data-end=\"2987\">It is often considered for products containing:<\/p>\n<ul data-start=\"2989\" data-end=\"3145\">\n<li data-section-id=\"1gqndw4\" data-start=\"2989\" data-end=\"3004\">Thin features<\/li>\n<li data-section-id=\"16wxnbk\" data-start=\"3005\" data-end=\"3021\">Small openings<\/li>\n<li data-section-id=\"b4pnhh\" data-start=\"3022\" data-end=\"3043\">Fine molded details<\/li>\n<li data-section-id=\"1t00pbm\" data-start=\"3044\" data-end=\"3062\">Complex geometry<\/li>\n<li data-section-id=\"xhz406\" data-start=\"3063\" data-end=\"3083\">High cavity counts<\/li>\n<li data-section-id=\"1hjoz7h\" data-start=\"3084\" data-end=\"3116\">Consistent repeated production<\/li>\n<li data-section-id=\"dva0t1\" data-start=\"3117\" data-end=\"3145\">Precision functional areas<\/li>\n<\/ul>\n<p data-start=\"3147\" data-end=\"3193\">Typical consumer-product examples may include:<\/p>\n<ul data-start=\"3195\" data-end=\"3343\">\n<li data-section-id=\"118dmhs\" data-start=\"3195\" data-end=\"3215\">Silicone pacifiers<\/li>\n<li data-section-id=\"afwnuw\" data-start=\"3216\" data-end=\"3249\">Certain baby feeding components<\/li>\n<li data-section-id=\"m2yrfh\" data-start=\"3250\" data-end=\"3282\">Small precision silicone parts<\/li>\n<li data-section-id=\"1wihfru\" data-start=\"3283\" data-end=\"3309\">Thin flexible components<\/li>\n<li data-section-id=\"1cwi7nb\" data-start=\"3310\" data-end=\"3343\">Some complex one-piece products<\/li>\n<\/ul>\n<p data-start=\"3345\" data-end=\"3464\">LSR&#8217;s ability to flow into fine mold features can be useful when a product contains small details or narrow structures.<\/p>\n<p data-start=\"3466\" data-end=\"3502\">However, the mold must also control:<\/p>\n<ul data-start=\"3504\" data-end=\"3581\">\n<li data-section-id=\"1i01ezq\" data-start=\"3504\" data-end=\"3519\">Gate position<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"3520\" data-end=\"3529\">Venting<\/li>\n<li data-section-id=\"1qv0hsh\" data-start=\"3530\" data-end=\"3544\">Parting line<\/li>\n<li data-section-id=\"170omoo\" data-start=\"3545\" data-end=\"3552\">Flash<\/li>\n<li data-section-id=\"1lj16sj\" data-start=\"3553\" data-end=\"3564\">Demolding<\/li>\n<li data-section-id=\"rzrj6m\" data-start=\"3565\" data-end=\"3581\">Cavity balance<\/li>\n<\/ul>\n<p data-start=\"3583\" data-end=\"3641\">LSR does not automatically eliminate engineering problems.<\/p>\n<hr data-start=\"3643\" data-end=\"3646\" \/>\n<h2 data-section-id=\"1mmoro6\" data-start=\"3648\" data-end=\"3688\"><span class=\"ez-toc-section\" id=\"What_Is_Silicone_Compression_Molding\"><\/span>What Is Silicone Compression Molding?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"3690\" data-end=\"3766\">Compression molding commonly uses solid or high-consistency silicone rubber.<\/p>\n<p data-start=\"3768\" data-end=\"3844\">A prepared quantity of silicone material is placed into an open heated mold.<\/p>\n<p data-start=\"3846\" data-end=\"3954\">The mold closes and applies pressure, causing the silicone to fill the cavity and cure into the final shape.<\/p>\n<p data-start=\"3956\" data-end=\"4003\">Compression molding is commonly considered for:<\/p>\n<ul data-start=\"4005\" data-end=\"4142\">\n<li data-section-id=\"1ov6d84\" data-start=\"4005\" data-end=\"4040\">Relatively simple molded products<\/li>\n<li data-section-id=\"1olm44b\" data-start=\"4041\" data-end=\"4064\">Larger silicone parts<\/li>\n<li data-section-id=\"1j3zlnn\" data-start=\"4065\" data-end=\"4071\">Mats<\/li>\n<li data-section-id=\"1j41w9e\" data-start=\"4072\" data-end=\"4078\">Bibs<\/li>\n<li data-section-id=\"16xw559\" data-start=\"4079\" data-end=\"4086\">Bowls<\/li>\n<li data-section-id=\"qxk6a5\" data-start=\"4087\" data-end=\"4098\">Some toys<\/li>\n<li data-section-id=\"1j49vri\" data-start=\"4099\" data-end=\"4105\">Pads<\/li>\n<li data-section-id=\"1fx33eo\" data-start=\"4106\" data-end=\"4142\">General consumer silicone products<\/li>\n<\/ul>\n<p data-start=\"4144\" data-end=\"4297\">It can be a practical process for many OEM projects where the structure does not require the flow characteristics or automation of LSR injection molding.<\/p>\n<p data-start=\"4299\" data-end=\"4344\">The product still requires proper control of:<\/p>\n<ul data-start=\"4346\" data-end=\"4457\">\n<li data-section-id=\"1y3icmd\" data-start=\"4346\" data-end=\"4364\">Material loading<\/li>\n<li data-section-id=\"1bph5zi\" data-start=\"4365\" data-end=\"4383\">Mold temperature<\/li>\n<li data-section-id=\"1j41oix\" data-start=\"4384\" data-end=\"4390\">Cure<\/li>\n<li data-section-id=\"170omoo\" data-start=\"4391\" data-end=\"4398\">Flash<\/li>\n<li data-section-id=\"ej6ptu\" data-start=\"4399\" data-end=\"4414\">Parting lines<\/li>\n<li data-section-id=\"1lj16sj\" data-start=\"4415\" data-end=\"4426\">Demolding<\/li>\n<li data-section-id=\"zy1zez\" data-start=\"4427\" data-end=\"4439\">Dimensions<\/li>\n<li data-section-id=\"nknm8g\" data-start=\"4440\" data-end=\"4457\">Surface quality<\/li>\n<\/ul>\n<p data-start=\"4459\" data-end=\"4532\">Compression molding should not be interpreted as a \u201clow-quality\u201d process.<\/p>\n<p data-start=\"4534\" data-end=\"4618\">For the right product geometry, it may be the more practical manufacturing solution.<\/p>\n<hr data-start=\"4620\" data-end=\"4623\" \/>\n<h2 data-section-id=\"gg0yel\" data-start=\"4625\" data-end=\"4682\"><span class=\"ez-toc-section\" id=\"What_Is_the_Main_Difference_Between_the_Two_Processes\"><\/span>What Is the Main Difference Between the Two Processes?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4684\" data-end=\"4774\">The biggest difference begins with the material form and how the silicone enters the mold.<\/p>\n<h3 data-section-id=\"12fryl2\" data-start=\"4776\" data-end=\"4801\">LSR\u5c04\u51fa\u6210\u5f62<\/h3>\n<p data-start=\"4803\" data-end=\"4866\">The liquid silicone is metered and injected into a closed mold.<\/p>\n<h3 data-section-id=\"ibhlky\" data-start=\"4868\" data-end=\"4891\">\u5727\u7e2e\u6210\u5f62<\/h3>\n<p data-start=\"4893\" data-end=\"5001\">A prepared solid silicone charge is placed into the mold before the mold closes and compresses the material.<\/p>\n<p data-start=\"5003\" data-end=\"5027\">This difference affects:<\/p>\n<ul data-start=\"5029\" data-end=\"5128\">\n<li data-section-id=\"1ba3nww\" data-start=\"5029\" data-end=\"5042\">Mold design<\/li>\n<li data-section-id=\"1jcwn9e\" data-start=\"5043\" data-end=\"5054\">\u8a2d\u5099<\/li>\n<li data-section-id=\"byb4jw\" data-start=\"5055\" data-end=\"5074\">Material handling<\/li>\n<li data-section-id=\"399lfb\" data-start=\"5075\" data-end=\"5087\">Automation<\/li>\n<li data-section-id=\"zgzxt7\" data-start=\"5088\" data-end=\"5106\">Filling behavior<\/li>\n<li data-section-id=\"xm95ko\" data-start=\"5107\" data-end=\"5128\">Production workflow<\/li>\n<\/ul>\n<p data-start=\"5130\" data-end=\"5208\">But buyers usually care about the final result rather than the machine itself.<\/p>\n<p data-start=\"5210\" data-end=\"5238\">The more useful question is:<\/p>\n<blockquote data-start=\"5240\" data-end=\"5337\">\n<p data-start=\"5242\" data-end=\"5337\">Which process can produce my product reliably at the required quantity, quality and total cost?<\/p>\n<\/blockquote>\n<p data-start=\"5242\" data-end=\"5337\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-10983\" src=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-300x300.jpg\" alt=\"LSR injection and silicone compression molding process comparison\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-300x300.jpg 300w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-150x150.jpg 150w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-768x768.jpg 768w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-12x12.jpg 12w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-600x600.jpg 600w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg-100x100.jpg 100w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/lsr-injection-vs-compression-molding-process.jpg.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<hr data-start=\"5339\" data-end=\"5342\" \/>\n<h2 data-section-id=\"47geiv\" data-start=\"5344\" data-end=\"5392\"><span class=\"ez-toc-section\" id=\"Which_Process_Is_Better_for_Complex_Geometry\"><\/span>Which Process Is Better for Complex Geometry?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5394\" data-end=\"5502\">LSR injection molding is often considered when the product contains complicated flow paths or fine features.<\/p>\n<p data-start=\"5504\" data-end=\"5525\">Examples may include:<\/p>\n<ul data-start=\"5527\" data-end=\"5679\">\n<li data-section-id=\"13copc0\" data-start=\"5527\" data-end=\"5547\">Thin flexible lips<\/li>\n<li data-section-id=\"1rw1sag\" data-start=\"5548\" data-end=\"5565\">Narrow openings<\/li>\n<li data-section-id=\"1hvq3fv\" data-start=\"5566\" data-end=\"5588\">Fine molded textures<\/li>\n<li data-section-id=\"1ovkg3l\" data-start=\"5589\" data-end=\"5616\">Small detailed structures<\/li>\n<li data-section-id=\"jfw3ot\" data-start=\"5617\" data-end=\"5652\">Deep but fillable cavity features<\/li>\n<li data-section-id=\"xwcmlf\" data-start=\"5653\" data-end=\"5679\">Multiple precision zones<\/li>\n<\/ul>\n<p data-start=\"5681\" data-end=\"5786\">Because the material is injected into the cavity, mold-flow strategy can be designed around the geometry.<\/p>\n<p data-start=\"5788\" data-end=\"5847\">However, complex geometry also increases the importance of:<\/p>\n<ul data-start=\"5849\" data-end=\"5918\">\n<li data-section-id=\"nj2y25\" data-start=\"5849\" data-end=\"5862\">Gate design<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"5863\" data-end=\"5872\">Venting<\/li>\n<li data-section-id=\"1jefbu3\" data-start=\"5873\" data-end=\"5889\">Air evacuation<\/li>\n<li data-section-id=\"1lj16sj\" data-start=\"5890\" data-end=\"5901\">Demolding<\/li>\n<li data-section-id=\"19cpvgm\" data-start=\"5902\" data-end=\"5918\">Tool precision<\/li>\n<\/ul>\n<p data-start=\"5920\" data-end=\"5992\">A difficult product does not become easy simply because LSR is selected.<\/p>\n<p data-start=\"5994\" data-end=\"6092\">The structure should still go through <a href=\"https:\/\/www.lyasilicone.com\/ja\/custom-silicone-mold-development-checklist\/\"><strong data-start=\"6032\" data-end=\"6068\">custom silicone mold development<\/strong> <\/a>and DFM before tooling.<\/p>\n<hr data-start=\"6094\" data-end=\"6097\" \/>\n<h2 data-section-id=\"1eb72ej\" data-start=\"6099\" data-end=\"6157\"><span class=\"ez-toc-section\" id=\"Which_Process_Is_Better_for_Larger_or_Simpler_Products\"><\/span>Which Process Is Better for Larger or Simpler Products?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"6159\" data-end=\"6255\">Compression molding can be very practical for larger and structurally simpler silicone products.<\/p>\n<p data-start=\"6257\" data-end=\"6278\">Examples may include:<\/p>\n<ul data-start=\"6280\" data-end=\"6400\">\n<li data-section-id=\"pauypl\" data-start=\"6280\" data-end=\"6303\">Silicone feeding mats<\/li>\n<li data-section-id=\"1mjjqi\" data-start=\"6304\" data-end=\"6315\">Baby bibs<\/li>\n<li data-section-id=\"1olsn02\" data-start=\"6316\" data-end=\"6337\">Large flat products<\/li>\n<li data-section-id=\"bftmqr\" data-start=\"6338\" data-end=\"6352\">Simple bowls<\/li>\n<li data-section-id=\"142huhx\" data-start=\"6353\" data-end=\"6372\">Some pet products<\/li>\n<li data-section-id=\"m5w6ju\" data-start=\"6373\" data-end=\"6400\">Larger molded accessories<\/li>\n<\/ul>\n<p data-start=\"6402\" data-end=\"6546\">For these products, an advanced LSR injection system may not always provide enough benefit to justify additional tooling and process complexity.<\/p>\n<p data-start=\"6548\" data-end=\"6674\">For example, a large flat silicone feeding mat with a simple raised edge may be well suited to a compression-molding approach.<\/p>\n<p data-start=\"6676\" data-end=\"6712\">The final decision still depends on:<\/p>\n<ul data-start=\"6714\" data-end=\"6808\">\n<li data-section-id=\"qm4rmd\" data-start=\"6714\" data-end=\"6733\">Product thickness<\/li>\n<li data-section-id=\"19gdz13\" data-start=\"6734\" data-end=\"6743\">\u30c6\u30af\u30b9\u30c1\u30e3\u30fc<\/li>\n<li data-section-id=\"1j4dcvh\" data-start=\"6744\" data-end=\"6750\">\u30b5\u30a4\u30ba<\/li>\n<li data-section-id=\"bo6loz\" data-start=\"6751\" data-end=\"6761\">Quantity<\/li>\n<li data-section-id=\"30vpqa\" data-start=\"6762\" data-end=\"6783\">Surface requirement<\/li>\n<li data-section-id=\"1azvkou\" data-start=\"6784\" data-end=\"6808\">Material specification<\/li>\n<\/ul>\n<p data-start=\"6810\" data-end=\"6923\">A large product is not automatically compression molded, just as a small product is not automatically LSR molded.<\/p>\n<hr data-start=\"6925\" data-end=\"6928\" \/>\n<h2 data-section-id=\"1ef0kfp\" data-start=\"6930\" data-end=\"6957\"><span class=\"ez-toc-section\" id=\"How_Does_Tooling_Differ\"><\/span>How Does Tooling Differ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"gnrasz\" data-start=\"6959\" data-end=\"6974\">LSR Tooling<\/h3>\n<p data-start=\"6976\" data-end=\"7027\">LSR injection molds may require precise control of:<\/p>\n<ul data-start=\"7029\" data-end=\"7161\">\n<li data-section-id=\"15oic59\" data-start=\"7029\" data-end=\"7044\">Runner system<\/li>\n<li data-section-id=\"1j44bb3\" data-start=\"7045\" data-end=\"7051\">Gate<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"7052\" data-end=\"7061\">Venting<\/li>\n<li data-section-id=\"1uw61w9\" data-start=\"7062\" data-end=\"7076\">Mold sealing<\/li>\n<li data-section-id=\"rzrj6m\" data-start=\"7077\" data-end=\"7093\">Cavity balance<\/li>\n<li data-section-id=\"1f3vflw\" data-start=\"7094\" data-end=\"7107\">\u6e29\u5ea6<\/li>\n<li data-section-id=\"79qd3r\" data-start=\"7108\" data-end=\"7161\">Needle shut-off or related systems where applicable<\/li>\n<\/ul>\n<p data-start=\"7163\" data-end=\"7197\">This can increase mold complexity.<\/p>\n<h3 data-section-id=\"ithhw0\" data-start=\"7199\" data-end=\"7222\">Compression Tooling<\/h3>\n<p data-start=\"7224\" data-end=\"7303\">Compression molds may use a more direct cavity structure for suitable products.<\/p>\n<p data-start=\"7305\" data-end=\"7344\">However, the mold still needs accurate:<\/p>\n<ul data-start=\"7346\" data-end=\"7445\">\n<li data-section-id=\"p131vd\" data-start=\"7346\" data-end=\"7364\">Product geometry<\/li>\n<li data-section-id=\"1qv0hsh\" data-start=\"7365\" data-end=\"7379\">Parting line<\/li>\n<li data-section-id=\"11q8v2z\" data-start=\"7380\" data-end=\"7399\">Cavity dimensions<\/li>\n<li data-section-id=\"15baeha\" data-start=\"7400\" data-end=\"7416\">Surface finish<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"7417\" data-end=\"7426\">Venting<\/li>\n<li data-section-id=\"1erh0c1\" data-start=\"7427\" data-end=\"7445\">Demolding design<\/li>\n<\/ul>\n<p data-start=\"7447\" data-end=\"7496\">A simple process does not mean an imprecise mold.<\/p>\n<p data-start=\"7498\" data-end=\"7560\">Tooling should always be evaluated against the actual product.<\/p>\n<hr data-start=\"7562\" data-end=\"7565\" \/>\n<h2 data-section-id=\"1td32gp\" data-start=\"7567\" data-end=\"7606\"><span class=\"ez-toc-section\" id=\"Which_Process_Has_Better_Automation\"><\/span>Which Process Has Better Automation?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"7608\" data-end=\"7734\">LSR injection molding generally offers greater potential for automated material feeding, injection and high-cavity production.<\/p>\n<p data-start=\"7736\" data-end=\"7766\">This can be advantageous when:<\/p>\n<ul data-start=\"7768\" data-end=\"7941\">\n<li data-section-id=\"xpypad\" data-start=\"7768\" data-end=\"7799\">Order quantities become large<\/li>\n<li data-section-id=\"d4ydlo\" data-start=\"7800\" data-end=\"7833\">Product consistency is critical<\/li>\n<li data-section-id=\"zkfzqq\" data-start=\"7834\" data-end=\"7869\">Labor content needs to be reduced<\/li>\n<li data-section-id=\"1fyecw0\" data-start=\"7870\" data-end=\"7911\">Production is repeated for long periods<\/li>\n<li data-section-id=\"1rg1btg\" data-start=\"7912\" data-end=\"7941\">Multi-cavity molds are used<\/li>\n<\/ul>\n<p data-start=\"7943\" data-end=\"8048\">Compression molding may involve more material preparation and loading depending on the production system.<\/p>\n<p data-start=\"8050\" data-end=\"8109\">However, automation alone should not determine the process.<\/p>\n<p data-start=\"8111\" data-end=\"8284\">A customer ordering a relatively simple product at a moderate quantity may not benefit from paying for a manufacturing system designed around much higher production volumes.<\/p>\n<hr data-start=\"8286\" data-end=\"8289\" \/>\n<h2 data-section-id=\"xww1h4\" data-start=\"8291\" data-end=\"8346\"><span class=\"ez-toc-section\" id=\"Does_LSR_Always_Provide_Better_Dimensional_Accuracy\"><\/span>Does LSR Always Provide Better Dimensional Accuracy?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"8348\" data-end=\"8366\">Not automatically.<\/p>\n<p data-start=\"8368\" data-end=\"8484\">LSR injection molding can provide strong repeatability when the material, mold and process are controlled correctly.<\/p>\n<p data-start=\"8486\" data-end=\"8543\">But final dimensional consistency is still influenced by:<\/p>\n<ul data-start=\"8545\" data-end=\"8655\">\n<li data-section-id=\"axwsfq\" data-start=\"8545\" data-end=\"8565\">Silicone shrinkage<\/li>\n<li data-section-id=\"13y28gu\" data-start=\"8566\" data-end=\"8587\">Product flexibility<\/li>\n<li data-section-id=\"p5l5uc\" data-start=\"8588\" data-end=\"8603\">Mold cavities<\/li>\n<li data-section-id=\"6f79ns\" data-start=\"8604\" data-end=\"8620\">Wall thickness<\/li>\n<li data-section-id=\"1f3vflw\" data-start=\"8621\" data-end=\"8634\">\u6e29\u5ea6<\/li>\n<li data-section-id=\"1n5p83h\" data-start=\"8635\" data-end=\"8655\">Measurement method<\/li>\n<\/ul>\n<p data-start=\"8657\" data-end=\"8774\">Compression-molded parts can also achieve controlled dimensions when the product and mold are designed appropriately.<\/p>\n<p data-start=\"8776\" data-end=\"8922\">The buyer should define which dimensions are actually critical instead of selecting a manufacturing process based only on a general claim such as:<\/p>\n<blockquote data-start=\"8924\" data-end=\"8946\">\n<p data-start=\"8926\" data-end=\"8946\">LSR is more precise.<\/p>\n<\/blockquote>\n<p data-start=\"8948\" data-end=\"8972\">The correct question is:<\/p>\n<blockquote data-start=\"8974\" data-end=\"9071\">\n<p data-start=\"8976\" data-end=\"9071\">Can this process consistently meet the critical dimensions required by this particular product?<\/p>\n<\/blockquote>\n<hr data-start=\"9073\" data-end=\"9076\" \/>\n<h2 data-section-id=\"1rv6q3w\" data-start=\"9078\" data-end=\"9116\"><span class=\"ez-toc-section\" id=\"What_About_Flash_and_Parting_Lines\"><\/span>What About Flash and Parting Lines?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"9118\" data-end=\"9166\">Both processes require mold-separation strategy.<\/p>\n<p data-start=\"9168\" data-end=\"9190\">Flash risk depends on:<\/p>\n<ul data-start=\"9192\" data-end=\"9309\">\n<li data-section-id=\"1hjwivo\" data-start=\"9192\" data-end=\"9208\">Mold precision<\/li>\n<li data-section-id=\"1hfnw1a\" data-start=\"9209\" data-end=\"9230\">Parting-line design<\/li>\n<li data-section-id=\"1jjlffz\" data-start=\"9231\" data-end=\"9250\">Material behavior<\/li>\n<li data-section-id=\"dzf47v\" data-start=\"9251\" data-end=\"9261\">Clamping<\/li>\n<li data-section-id=\"gvzne9\" data-start=\"9262\" data-end=\"9278\">Mold condition<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"9279\" data-end=\"9288\">Venting<\/li>\n<li data-section-id=\"1c1y5qx\" data-start=\"9289\" data-end=\"9309\">Process parameters<\/li>\n<\/ul>\n<p data-start=\"9311\" data-end=\"9403\">LSR can enter extremely small gaps, making precise mold closing and flash control important.<\/p>\n<p data-start=\"9405\" data-end=\"9515\">Compression molding can also create excess material around the parting area that requires controlled trimming.<\/p>\n<p data-start=\"9517\" data-end=\"9550\">Buyers should approve the actual:<\/p>\n<ul data-start=\"9552\" data-end=\"9640\">\n<li data-section-id=\"9lkjdt\" data-start=\"9552\" data-end=\"9575\">Parting-line location<\/li>\n<li data-section-id=\"1bkpk9v\" data-start=\"9576\" data-end=\"9592\">Flash standard<\/li>\n<li data-section-id=\"1saprh5\" data-start=\"9593\" data-end=\"9614\">Trimming appearance<\/li>\n<li data-section-id=\"1brudqf\" data-start=\"9615\" data-end=\"9640\">Critical cosmetic zones<\/li>\n<\/ul>\n<p data-start=\"9642\" data-end=\"9665\">before mass production.<\/p>\n<hr data-start=\"9667\" data-end=\"9670\" \/>\n<h2 data-section-id=\"xppj6e\" data-start=\"9672\" data-end=\"9715\"><span class=\"ez-toc-section\" id=\"Example_1_Custom_Silicone_Baby_Pacifier\"><\/span>Example 1: Custom Silicone Baby Pacifier<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"9717\" data-end=\"9786\">A <a href=\"https:\/\/www.lyasilicone.com\/ja\/product-category\/silicone-baby-products\/\"><strong data-start=\"9719\" data-end=\"9744\">\u30b7\u30ea\u30b3\u30fc\u30f3\u30d9\u30d3\u30fc\u7528\u54c1<\/strong><\/a> such as a one-piece pacifier may contain:<\/p>\n<ul data-start=\"9788\" data-end=\"9905\">\n<li data-section-id=\"e9w5ff\" data-start=\"9788\" data-end=\"9812\">Thin nipple structures<\/li>\n<li data-section-id=\"md1aep\" data-start=\"9813\" data-end=\"9843\">Smooth oral-contact surfaces<\/li>\n<li data-section-id=\"lnbs8u\" data-start=\"9844\" data-end=\"9866\">Ventilation openings<\/li>\n<li data-section-id=\"1e0rkwg\" data-start=\"9867\" data-end=\"9885\">Fine transitions<\/li>\n<li data-section-id=\"bx8av6\" data-start=\"9886\" data-end=\"9905\">Detailed geometry<\/li>\n<\/ul>\n<p data-start=\"9907\" data-end=\"10062\">For this type of product, LSR injection molding may be evaluated because of the combination of material flow, fine structures and production repeatability.<\/p>\n<p data-start=\"10064\" data-end=\"10159\">However, final process selection still depends on the actual design and material specification.<\/p>\n<p data-start=\"10161\" data-end=\"10192\">The manufacturer should review:<\/p>\n<ul data-start=\"10194\" data-end=\"10282\">\n<li data-section-id=\"1x7wpss\" data-start=\"10194\" data-end=\"10211\">Nipple geometry<\/li>\n<li data-section-id=\"1i01ezq\" data-start=\"10212\" data-end=\"10227\">Gate position<\/li>\n<li data-section-id=\"ta9u69\" data-start=\"10228\" data-end=\"10237\">Venting<\/li>\n<li data-section-id=\"16qhaad\" data-start=\"10238\" data-end=\"10252\">Mold parting<\/li>\n<li data-section-id=\"1lj16sj\" data-start=\"10253\" data-end=\"10264\">Demolding<\/li>\n<li data-section-id=\"nknm8g\" data-start=\"10265\" data-end=\"10282\">Surface quality<\/li>\n<\/ul>\n<p data-start=\"10284\" data-end=\"10299\">before tooling.<\/p>\n<hr data-start=\"10301\" data-end=\"10304\" \/>\n<h2 data-section-id=\"vr9xrz\" data-start=\"10306\" data-end=\"10345\"><span class=\"ez-toc-section\" id=\"Example_2_Silicone_Baby_Feeding_Mat\"><\/span>Example 2: Silicone Baby Feeding Mat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"10347\" data-end=\"10395\">Consider a large one-piece silicone feeding mat.<\/p>\n<p data-start=\"10397\" data-end=\"10418\">The product may have:<\/p>\n<ul data-start=\"10420\" data-end=\"10536\">\n<li data-section-id=\"pdb116\" data-start=\"10420\" data-end=\"10437\">Large flat body<\/li>\n<li data-section-id=\"qmpo4x\" data-start=\"10438\" data-end=\"10462\">Simple rounded corners<\/li>\n<li data-section-id=\"17f4ybv\" data-start=\"10463\" data-end=\"10490\">Shallow raised spill edge<\/li>\n<li data-section-id=\"5fg1w4\" data-start=\"10491\" data-end=\"10506\">Matte surface<\/li>\n<li data-section-id=\"1uiyx31\" data-start=\"10507\" data-end=\"10536\">Anti-slip underside texture<\/li>\n<\/ul>\n<p data-start=\"10538\" data-end=\"10615\">This geometry may be a good candidate for solid silicone compression molding.<\/p>\n<p data-start=\"10617\" data-end=\"10652\">The process can be selected around:<\/p>\n<ul data-start=\"10654\" data-end=\"10742\">\n<li data-section-id=\"1stk9wm\" data-start=\"10654\" data-end=\"10668\">\u88fd\u54c1\u30b5\u30a4\u30ba<\/li>\n<li data-section-id=\"6f79ns\" data-start=\"10669\" data-end=\"10685\">Wall thickness<\/li>\n<li data-section-id=\"3zrflu\" data-start=\"10686\" data-end=\"10703\">Surface texture<\/li>\n<li data-section-id=\"rkj6di\" data-start=\"10704\" data-end=\"10720\">Material usage<\/li>\n<li data-section-id=\"127nk4w\" data-start=\"10721\" data-end=\"10742\">Production quantity<\/li>\n<\/ul>\n<p data-start=\"10744\" data-end=\"10883\">Trying to force the same process used for a small precision pacifier onto a large simple mat may not provide a meaningful customer benefit.<\/p>\n<hr data-start=\"10885\" data-end=\"10888\" \/>\n<h2 data-section-id=\"163elmk\" data-start=\"10890\" data-end=\"10926\"><span class=\"ez-toc-section\" id=\"What_About_Silicone_Pet_Products\"><\/span>What About Silicone Pet Products?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"10928\" data-end=\"10979\">The same rule applies to <a href=\"https:\/\/www.lyasilicone.com\/ja\/product-category\/silicone-pet-products\/\"><strong data-start=\"10953\" data-end=\"10978\">silicone pet products<\/strong><\/a>.<\/p>\n<p data-start=\"10981\" data-end=\"11042\">A pet product category can contain very different structures:<\/p>\n<ul data-start=\"11044\" data-end=\"11136\">\n<li data-section-id=\"3q3lqm\" data-start=\"11044\" data-end=\"11055\">Lick mats<\/li>\n<li data-section-id=\"7rlywf\" data-start=\"11056\" data-end=\"11071\">Feeding bowls<\/li>\n<li data-section-id=\"sy0pq0\" data-start=\"11072\" data-end=\"11090\">Grooming brushes<\/li>\n<li data-section-id=\"2svme8\" data-start=\"11091\" data-end=\"11102\">Chew toys<\/li>\n<li data-section-id=\"yx9wll\" data-start=\"11103\" data-end=\"11115\">Treat bags<\/li>\n<li data-section-id=\"p9u63a\" data-start=\"11116\" data-end=\"11136\">Travel accessories<\/li>\n<\/ul>\n<p data-start=\"11138\" data-end=\"11246\">A simple pet feeding mat and a complex small molded component should not automatically use the same process.<\/p>\n<p data-start=\"11248\" data-end=\"11309\">Product category does not determine manufacturing technology.<\/p>\n<p data-start=\"11311\" data-end=\"11351\">Geometry and production requirements do.<\/p>\n<hr data-start=\"11353\" data-end=\"11356\" \/>\n<h2 data-section-id=\"ib4qnw\" data-start=\"11358\" data-end=\"11422\"><span class=\"ez-toc-section\" id=\"How_Should_Buyers_Choose_Between_LSR_and_Compression_Molding\"><\/span>How Should Buyers Choose Between LSR and Compression Molding?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"11424\" data-end=\"11476\">Before choosing the process, answer these questions:<\/p>\n<h3 data-section-id=\"udq5i6\" data-start=\"11478\" data-end=\"11512\">1. How Complex Is the Product?<\/h3>\n<p data-start=\"11514\" data-end=\"11582\">Does it contain thin features, fine details or difficult flow paths?<\/p>\n<h3 data-section-id=\"1i9ks2o\" data-start=\"11584\" data-end=\"11616\">2. How Large Is the Product?<\/h3>\n<p data-start=\"11618\" data-end=\"11702\">Large simple components may require a different approach from small precision parts.<\/p>\n<h3 data-section-id=\"1sh7nm9\" data-start=\"11704\" data-end=\"11737\">3. What Quantity Is Expected?<\/h3>\n<p data-start=\"11739\" data-end=\"11776\">Do not consider only the first order.<\/p>\n<p data-start=\"11778\" data-end=\"11842\">Estimate expected repeat orders or annual demand where possible.<\/p>\n<h3 data-section-id=\"ajdydc\" data-start=\"11844\" data-end=\"11881\">4. Which Dimensions Are Critical?<\/h3>\n<p data-start=\"11883\" data-end=\"11941\">Identify actual assembly, fit and functional requirements.<\/p>\n<h3 data-section-id=\"1m298z5\" data-start=\"11943\" data-end=\"11978\">5. How Important Is Automation?<\/h3>\n<p data-start=\"11980\" data-end=\"12044\">High-volume projects may benefit more from automated production.<\/p>\n<h3 data-section-id=\"1v3svpx\" data-start=\"12046\" data-end=\"12080\">6. What Is the Tooling Budget?<\/h3>\n<p data-start=\"12082\" data-end=\"12136\">Compare total project cost instead of only unit price.<\/p>\n<h3 data-section-id=\"1rkso79\" data-start=\"12138\" data-end=\"12172\">7. Which Material Is Required?<\/h3>\n<p data-start=\"12174\" data-end=\"12244\">Material selection and process selection need to be reviewed together.<\/p>\n<p data-start=\"12174\" data-end=\"12244\"><img decoding=\"async\" class=\"alignnone size-medium wp-image-10984\" src=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-300x300.jpg\" alt=\"Silicone molding process selection and DFM review\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-300x300.jpg 300w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-150x150.jpg 150w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-768x768.jpg 768w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-12x12.jpg 12w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-600x600.jpg 600w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg-100x100.jpg 100w, https:\/\/www.lyasilicone.com\/wp-content\/uploads\/2026\/08\/silicone-molding-process-selection-dfm.jpg.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<hr data-start=\"12246\" data-end=\"12249\" \/>\n<h2 data-section-id=\"sznhtc\" data-start=\"12251\" data-end=\"12291\"><span class=\"ez-toc-section\" id=\"LSR_vs_Compression_Molding_Comparison\"><\/span>LSR vs Compression Molding Comparison<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"group TyagGW_tableContainer\">\n<div class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"12293\" data-end=\"13210\">\n<thead data-start=\"12293\" data-end=\"12356\">\n<tr data-start=\"12293\" data-end=\"12356\">\n<th class=\"last:pe-10\" data-start=\"12293\" data-end=\"12300\" data-col-size=\"sm\">\u9805\u76ee<\/th>\n<th class=\"last:pe-10\" data-start=\"12300\" data-end=\"12324\" data-col-size=\"md\">LSR\u5c04\u51fa\u6210\u5f62<\/th>\n<th class=\"last:pe-10\" data-start=\"12324\" data-end=\"12356\" data-col-size=\"md\">Silicone Compression Molding<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"12371\" data-end=\"13210\">\n<tr data-start=\"12371\" data-end=\"12462\">\n<td data-start=\"12371\" data-end=\"12395\" data-col-size=\"sm\">Typical material form<\/td>\n<td data-start=\"12395\" data-end=\"12427\" data-col-size=\"md\">Two-component liquid silicone<\/td>\n<td data-start=\"12427\" data-end=\"12462\" data-col-size=\"md\">High-consistency\/solid silicone<\/td>\n<\/tr>\n<tr data-start=\"12463\" data-end=\"12552\">\n<td data-start=\"12463\" data-end=\"12486\" data-col-size=\"sm\">Material enters mold<\/td>\n<td data-start=\"12486\" data-end=\"12514\" data-col-size=\"md\">Injected into closed mold<\/td>\n<td data-start=\"12514\" data-end=\"12552\" data-col-size=\"md\">Prepared charge compressed in mold<\/td>\n<\/tr>\n<tr data-start=\"12553\" data-end=\"12614\">\n<td data-start=\"12553\" data-end=\"12576\" data-col-size=\"sm\">Automation potential<\/td>\n<td data-start=\"12576\" data-end=\"12583\" data-col-size=\"md\">\u9ad8\u3044<\/td>\n<td data-start=\"12583\" data-end=\"12614\" data-col-size=\"md\">Depends on production setup<\/td>\n<\/tr>\n<tr data-start=\"12615\" data-end=\"12677\">\n<td data-start=\"12615\" data-end=\"12633\" data-col-size=\"sm\">Fine structures<\/td>\n<td data-start=\"12633\" data-end=\"12654\" data-col-size=\"md\">Often advantageous<\/td>\n<td data-start=\"12654\" data-end=\"12677\" data-col-size=\"md\">Depends on geometry<\/td>\n<\/tr>\n<tr data-start=\"12678\" data-end=\"12758\">\n<td data-start=\"12678\" data-end=\"12699\" data-col-size=\"sm\">Large simple parts<\/td>\n<td data-start=\"12699\" data-end=\"12739\" data-col-size=\"md\">Possible, but process must justify it<\/td>\n<td data-start=\"12739\" data-end=\"12758\" data-col-size=\"md\">Often practical<\/td>\n<\/tr>\n<tr data-start=\"12759\" data-end=\"12829\">\n<td data-start=\"12759\" data-end=\"12777\" data-col-size=\"sm\">Tool complexity<\/td>\n<td data-start=\"12777\" data-end=\"12793\" data-col-size=\"md\">Can be higher<\/td>\n<td data-start=\"12793\" data-end=\"12829\" data-col-size=\"md\">Often simpler for suitable parts<\/td>\n<\/tr>\n<tr data-start=\"12830\" data-end=\"12891\">\n<td data-start=\"12830\" data-end=\"12844\" data-col-size=\"sm\">Gate system<\/td>\n<td data-start=\"12844\" data-end=\"12855\" data-col-size=\"md\">Required<\/td>\n<td data-start=\"12855\" data-end=\"12891\" data-col-size=\"md\">Different material-loading logic<\/td>\n<\/tr>\n<tr data-start=\"12892\" data-end=\"12980\">\n<td data-start=\"12892\" data-end=\"12908\" data-col-size=\"sm\">Flash control<\/td>\n<td data-start=\"12908\" data-end=\"12940\" data-col-size=\"md\">Requires precise mold sealing<\/td>\n<td data-start=\"12940\" data-end=\"12980\" data-col-size=\"md\">Requires controlled mold\/trim design<\/td>\n<\/tr>\n<tr data-start=\"12981\" data-end=\"13088\">\n<td data-start=\"12981\" data-end=\"13003\" data-col-size=\"sm\">Production quantity<\/td>\n<td data-start=\"13003\" data-end=\"13052\" data-col-size=\"md\">Often attractive for repeated\/high-volume work<\/td>\n<td data-start=\"13052\" data-end=\"13088\" data-col-size=\"md\">Flexible for many project scales<\/td>\n<\/tr>\n<tr data-start=\"13089\" data-end=\"13210\">\n<td data-start=\"13089\" data-end=\"13113\" data-col-size=\"sm\">Best selection method<\/td>\n<td data-start=\"13113\" data-end=\"13161\" data-col-size=\"md\">DFM + geometry + volume + quality requirement<\/td>\n<td data-start=\"13161\" data-end=\"13210\" data-col-size=\"md\">DFM + geometry + volume + quality requirement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"13212\" data-end=\"13215\" \/>\n<h2 data-section-id=\"1c64re6\" data-start=\"13217\" data-end=\"13241\"><span class=\"ez-toc-section\" id=\"Common_Buyer_Mistakes\"><\/span>Common Buyer Mistakes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"1pz4z0z\" data-start=\"13243\" data-end=\"13291\">Choosing LSR Because It Sounds More Advanced<\/h3>\n<p data-start=\"13293\" data-end=\"13383\">The most advanced process is not automatically the most economical or appropriate process.<\/p>\n<h3 data-section-id=\"gefbul\" data-start=\"13385\" data-end=\"13450\">Choosing Compression Molding Only Because the Mold Is Simpler<\/h3>\n<p data-start=\"13452\" data-end=\"13542\">A complex product may create filling or consistency problems that justify another process.<\/p>\n<h3 data-section-id=\"187j3dn\" data-start=\"13544\" data-end=\"13573\">Comparing Only Unit Price<\/h3>\n<p data-start=\"13575\" data-end=\"13611\">A proper comparison should consider:<\/p>\n<ul data-start=\"13613\" data-end=\"13700\">\n<li data-section-id=\"13svd8w\" data-start=\"13613\" data-end=\"13622\">Tooling<\/li>\n<li data-section-id=\"3wjr2j\" data-start=\"13623\" data-end=\"13633\">Sampling<\/li>\n<li data-section-id=\"16pv9wr\" data-start=\"13634\" data-end=\"13646\">\u88fd\u9020<\/li>\n<li data-section-id=\"16r4fju\" data-start=\"13647\" data-end=\"13654\">Labor<\/li>\n<li data-section-id=\"178mxx7\" data-start=\"13655\" data-end=\"13662\">Scrap<\/li>\n<li data-section-id=\"qf9l7a\" data-start=\"13663\" data-end=\"13675\">Inspection<\/li>\n<li data-section-id=\"1rm6rgp\" data-start=\"13676\" data-end=\"13700\">Expected repeat volume<\/li>\n<\/ul>\n<h3 data-section-id=\"pcymvj\" data-start=\"13702\" data-end=\"13757\">Selecting the Process Before the 3D Design Is Final<\/h3>\n<p data-start=\"13759\" data-end=\"13771\">A change in:<\/p>\n<ul data-start=\"13773\" data-end=\"13833\">\n<li data-section-id=\"6f79ns\" data-start=\"13773\" data-end=\"13789\">Wall thickness<\/li>\n<li data-section-id=\"6n57j0\" data-start=\"13790\" data-end=\"13805\">Hole geometry<\/li>\n<li data-section-id=\"19gdz13\" data-start=\"13806\" data-end=\"13815\">\u30c6\u30af\u30b9\u30c1\u30e3\u30fc<\/li>\n<li data-section-id=\"1j4dcvh\" data-start=\"13816\" data-end=\"13822\">\u30b5\u30a4\u30ba<\/li>\n<li data-section-id=\"rhxyrm\" data-start=\"13823\" data-end=\"13833\">Undercut<\/li>\n<\/ul>\n<p data-start=\"13835\" data-end=\"13874\">may change the preferred molding route.<\/p>\n<hr data-start=\"13876\" data-end=\"13879\" \/>\n<h2 data-section-id=\"6863m6\" data-start=\"13881\" data-end=\"13927\"><span class=\"ez-toc-section\" id=\"How_LYA_Silicone_Supports_Process_Selection\"><\/span>How LYA Silicone Supports Process Selection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"13929\" data-end=\"14036\">LYA Silicone supports <a href=\"https:\/\/www.lyasilicone.com\/ja\/oem-service\/\"><strong data-start=\"13951\" data-end=\"13978\">OEM and ODM development<\/strong><\/a> for baby, pet, outdoor and educational silicone products.<\/p>\n<p data-start=\"14038\" data-end=\"14065\">Project review may include:<\/p>\n<ul data-start=\"14067\" data-end=\"14306\">\n<li data-section-id=\"4eolax\" data-start=\"14067\" data-end=\"14091\">Product drawing review<\/li>\n<li data-section-id=\"1v3ok14\" data-start=\"14092\" data-end=\"14112\">Application review<\/li>\n<li data-section-id=\"vrp23n\" data-start=\"14113\" data-end=\"14133\">Material selection<\/li>\n<li data-section-id=\"1rb27rw\" data-start=\"14134\" data-end=\"14155\">Hardness discussion<\/li>\n<li data-section-id=\"91chqb\" data-start=\"14156\" data-end=\"14175\">Process selection<\/li>\n<li data-section-id=\"1y0e6wl\" data-start=\"14176\" data-end=\"14190\">DFM analysis<\/li>\n<li data-section-id=\"vnvfht\" data-start=\"14191\" data-end=\"14209\">Mold development<\/li>\n<li data-section-id=\"bn1yz1\" data-start=\"14210\" data-end=\"14229\">Sample production<\/li>\n<li data-section-id=\"ihmc6k\" data-start=\"14230\" data-end=\"14253\">Functional validation<\/li>\n<li data-section-id=\"1f2uujp\" data-start=\"14254\" data-end=\"14272\">Pilot production<\/li>\n<li data-section-id=\"1db0g2o\" data-start=\"14273\" data-end=\"14306\">Mass-production quality control<\/li>\n<\/ul>\n<p data-start=\"14308\" data-end=\"14372\">The goal is not to sell a customer a particular molding process.<\/p>\n<p data-start=\"14374\" data-end=\"14478\">The goal is to select a process capable of producing the required product consistently and economically.<\/p>\n<hr data-start=\"14480\" data-end=\"14483\" \/>\n<h2 data-section-id=\"1r8frcv\" data-start=\"14485\" data-end=\"14514\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"no7diw\" data-start=\"14516\" data-end=\"14567\">Is LSR Injection Molding Always More Expensive?<\/h3>\n<p data-start=\"14569\" data-end=\"14585\">Not necessarily.<\/p>\n<p data-start=\"14587\" data-end=\"14724\">Tooling and equipment requirements may be higher, but production volume, automation and part geometry affect the total project economics.<\/p>\n<h3 data-section-id=\"1iwy26n\" data-start=\"14726\" data-end=\"14777\">Is Compression Molding Only for Cheap Products?<\/h3>\n<p data-start=\"14779\" data-end=\"14782\">\u305d\u3046\u3060\u3002<\/p>\n<p data-start=\"14784\" data-end=\"14883\">Compression molding is a mature manufacturing process used for many high-quality silicone products.<\/p>\n<h3 data-section-id=\"1wkc0qo\" data-start=\"14885\" data-end=\"14936\">Can the Same Product Be Made by Both Processes?<\/h3>\n<p data-start=\"14938\" data-end=\"14952\">Sometimes yes.<\/p>\n<p data-start=\"14954\" data-end=\"15050\">The better process depends on material, geometry, quantity, appearance and quality requirements.<\/p>\n<h3 data-section-id=\"1bko365\" data-start=\"15052\" data-end=\"15097\">Is LSR Better for High-Volume Production?<\/h3>\n<p data-start=\"15099\" data-end=\"15221\">It is often attractive for highly automated and repeated production, but the product must justify the tooling and process.<\/p>\n<h3 data-section-id=\"znpe29\" data-start=\"15223\" data-end=\"15272\">Is Compression Molding Better for Prototypes?<\/h3>\n<p data-start=\"15274\" data-end=\"15417\">It can be practical for certain simpler structures, but prototype strategy depends on the final manufacturing process and project requirements.<\/p>\n<h3 data-section-id=\"1d8bb\" data-start=\"15419\" data-end=\"15470\">Should the Process Be Confirmed Before Tooling?<\/h3>\n<p data-start=\"15472\" data-end=\"15476\">Yes.<\/p>\n<p data-start=\"15478\" data-end=\"15550\">Mold design depends heavily on the selected material and molding method.<\/p>\n<hr data-start=\"15552\" data-end=\"15555\" \/>\n<h2 data-section-id=\"1yo2i4m\" data-start=\"15557\" data-end=\"15606\"><span class=\"ez-toc-section\" id=\"Choose_the_Process_After_Reviewing_the_Product\"><\/span>Choose the Process After Reviewing the Product<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"15608\" data-end=\"15711\">LSR injection molding and compression molding are not competing technologies where one must always win.<\/p>\n<p data-start=\"15713\" data-end=\"15752\">They are different manufacturing tools.<\/p>\n<p data-start=\"15754\" data-end=\"15798\">Before opening a mold, buyers should review:<\/p>\n<ul data-start=\"15800\" data-end=\"15938\">\n<li data-section-id=\"p131vd\" data-start=\"15800\" data-end=\"15818\">Product geometry<\/li>\n<li data-section-id=\"1j4dcvh\" data-start=\"15819\" data-end=\"15825\">\u30b5\u30a4\u30ba<\/li>\n<li data-section-id=\"6f79ns\" data-start=\"15826\" data-end=\"15842\">Wall thickness<\/li>\n<li data-section-id=\"v2almr\" data-start=\"15843\" data-end=\"15853\">\u7d20\u6750<\/li>\n<li data-section-id=\"bo6loz\" data-start=\"15854\" data-end=\"15864\">Quantity<\/li>\n<li data-section-id=\"399lfb\" data-start=\"15865\" data-end=\"15877\">Automation<\/li>\n<li data-section-id=\"k6xhds\" data-start=\"15878\" data-end=\"15899\">Critical dimensions<\/li>\n<li data-section-id=\"nknm8g\" data-start=\"15900\" data-end=\"15917\">Surface quality<\/li>\n<li data-section-id=\"9qag7l\" data-start=\"15918\" data-end=\"15938\">Tooling investment<\/li>\n<\/ul>\n<p data-start=\"15940\" data-end=\"16156\">To determine the appropriate process for a custom silicone project, send <a href=\"https:\/\/www.lyasilicone.com\/ja\/contact\/\"><strong data-start=\"16013\" data-end=\"16029\">\u30ea\u30e4\u30fb\u30b7\u30ea\u30b3\u30fc\u30f3<\/strong><\/a> your 3D drawing, product application, dimensions, material requirements, estimated quantity and critical quality requirements.<\/p>","protected":false},"excerpt":{"rendered":"<p>Answer Excerpt LSR injection molding and silicone compression molding can both produce high-quality custom silicone products, but they suit different [&hellip;]<\/p>","protected":false},"author":1,"featured_media":10982,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"LSR vs Compression Molding for Silicone Products | LYA","_seopress_titles_desc":"Compare LSR injection molding and silicone compression molding for custom products, including geometry, tooling, automation, volume and quality control.","_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 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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-10978","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/posts\/10978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/comments?post=10978"}],"version-history":[{"count":2,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/posts\/10978\/revisions"}],"predecessor-version":[{"id":10985,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/posts\/10978\/revisions\/10985"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/media\/10982"}],"wp:attachment":[{"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/media?parent=10978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/categories?post=10978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lyasilicone.com\/ja\/wp-json\/wp\/v2\/tags?post=10978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}