By LYA Silicone | Premium Silicone Pet Product Manufacturer

When choosing materials for pet chew toys, the debate has always centered around silicone vs. natural rubber.
Many pet brands assume rubber is always tougher—but is that really true?
To answer this, we conducted a series of scientific bite-resistance tests using industry standards and our in-house LSR (Liquid Silicone Rubber) formulations.

Below are the real test results, supported by material science data, durability measurements, and global safety standards.

1. Understanding the Core Difference: Material Structure

To compare fairly, we analyzed material molecular structure, because durability starts from the chemistry.

Silicone (Platinum-Cured LSR)

• Highly cross-linked polymer network

• Stable Si–O–Si backbone

• Exceptional elasticity (up to 500% elongation)

• Heat and UV resistant

• Does not degrade with moisture or saliva

Natural Rubber

• Long-chain hydrocarbon polymer

• Strong tensile strength

• Good elasticity

• Prone to oxidation, UV degradation, and tearing from sharp bites

2. Laboratory Bite-Resistance Tests: Silicone vs. Rubber

At LYA Silicone, we performed standardized durability tests using:

✔ Tear Strength Test (ASTM D624)
✔ Tensile Test (ASTM D412)
✔ Dynamic Fatigue Test (Simulated Repetitive Biting)
✔ Shore Hardness Test (20A–80A)

Test Result Summary

3. Real Chewing Simulation: 30,000 Bite Cycles

We used a mechanical biting simulator applying 35N bite force, similar to a medium-sized dog.

Results after 30,000 chew cycles

• Rubber toys developed surface cracks and internal stress fractures

• Silicone toys remained structurally intact with no significant deformation

• Silicone retained 95% elasticity, rubber dropped to 72%

4. How This Benefits Pet Brands & Importers

Silicone Advantages for B2B Buyers

✔ Fewer customer complaints about toys breaking
✔ Lower product liability risk
✔ Higher perceived brand quality
✔ More design possibilities (textures, hollow structures, slow-feeders, squeakers)
✔ Safer for pets—no latex, no sulfur, no odors

Rubber Advantages

✔ Extremely strong for short bursts of force
✔ Good for hard-bite balls and tug toys
✔ Natural material perception

Balanced Summary

For aggressive chewers demanding maximum toughness:
→ Rubber balls remain excellent

For “chew + play + comfort + safety” multifunctional toys:
→ Silicone performs better overall

This is why global brands now combine materials:
Nylon core + Silicone outer or Rubber ball + Silicone textures

5. Why LYA Silicone’s LSR Toys Perform Better Than Standard Silicone

Many buyers think “silicone = silicone,” but the performance varies drastically depending on:

• Cure system (platinum-cured vs peroxide)

• Shore hardness formulation

• Tear strength grade

• Mold design & venting accuracy

• Injection vs compression molding

At www.lyasilicone.com, we use:
✔ Medical-grade platinum-cured LSR
✔ Customized tear-resistant formulas (≥30kN/m)
✔ Precision injection molding for complex toys
✔ Internal mold manufacturing for perfect parting lines
✔ Full compliance: FDA, LFGB, EN71, REACH, CA65

FAQ — About Silicone vs. Rubber Pet Toys

Q1: Is silicone really more bite-resistant than rubber?

A: Yes—especially under repetitive chewing. Rubber is strong in one-time pull tests, but silicone has superior tear resistance and fatigue durability.

Q2: Is silicone safe for dogs that chew aggressively?

A: Silicone is hypoallergenic, BPA-free, latex-free, odor-free, and withstands long-term chewing without chemical release.

Q3: Do silicone toys get sticky or degrade over time?

A: No. High-quality LSR silicone resists UV, saliva, and oxidation, maintaining elasticity for years.

Q4: Can silicone replace rubber entirely?

A: For moderate to strong chewers—yes. For extreme chewers needing ultra-hard toys, nylon or natural rubber cores may be used together with silicone.

Q5: Does LYA Silicone offer custom toy design and molding?

A: Absolutely. We provide concept design, 3D modeling, mold manufacturing, silicone formulation, LSR injection molding, and OEM/ODM production.

Contact us today to discuss your project:

•  Email: sale11@lyasilicone.com
•  Phone: +86-13420974883
• Website: www.lyasilicone.com