LSR Liquid Silicone Rubber combines excellent material properties with easy processing, making it ideal for manufacturing baby feeding products such as bottle nipples.
Product Overview
Our two-component platinum-cured liquid silicone rubber (LSR) is specially developed for manufacturing high-safety baby feeding and food-contact products. The material offers excellent transparency, elasticity, and long-term durability while ensuring full compliance with international food-grade standards.
Designed for precision injection molding, this LSR delivers stable processing performance and consistent product quality, making it the preferred material for professional baby product manufacturers worldwide.
Typical Applications
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Baby bottle nipples
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Pacifiers
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Feeding valves
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Breast pump components
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Food-contact silicone products
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Baking molds
Key Features & Benefits
✅ Uncompromising Safety
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Complies with FDA, LFGB, EU food-contact standards
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RoHS, REACH, PAHs compliant
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BPA-free, phthalate-free, latex-free
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Non-toxic and odorless
✅ Superior Material Performance
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Crystal clear transparency
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Excellent rebound elasticity
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Outstanding resistance to yellowing and aging
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Maintains softness and resilience over time
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High temperature resistance up to 200°C
✅ Excellent Processing Performance
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Two-component 1:1 mixing ratio
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Low viscosity and excellent flowability
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Suitable for precision injection molding
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Platinum vulcanization curing system
✅ Durable Sterilization Resistance
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Withstands boiling sterilization
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Steam sterilization resistant
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Microwave sterilization resistant
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No deformation after repeated use
| Item | Standard | Unit | Reference ranges |
|---|---|---|---|
| Appearance | Visual | — | Colorless Transparent |
| Specific Gravity | GB/T 533-2008 | g/cm³ | 1.10 ± 0.02 |
| Hardness | GB/T 531.1-2008 | Shore A | 28–32 |
| Rebound Elasticity | GB/T 1681-2009 | % | ≥50 |
| Tensile Strength | GB/T 528-2009 | MPa | ≥7 |
| Tear Strength | GB/T 529-2008 | kN/m | ≥15 |
| Elongation at Break | GB/T 528-2009 | % | ≥600 |
| Tensile Set at Break | GB/T 528-2009 | % | ≤5 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

