LSR Platinum-Catalyzed Liquid Silicone Rubber: High-Resilience, Breathable Raw Material for Shock-Absorbing Silicone Insoles
LSR two-component platinum addition liquid silicone rubber, specially developed for silicone insoles and orthotic foot pads. Low odor and skin-friendly. Finished products deliver outstanding resilience and shock absorption, resisting permanent deformation after long-term use. It supports liquid injection molding and pouring molding, featuring anti-aging and anti-yellowing properties, suitable for mass production of sports insoles, orthopedic insoles and massage foot pads.

- Platinum curing system, low odor, no harmful substance precipitation, safe for direct skin contact.
- High resilience effectively relieves foot pressure and absorbs shock; anti-collapse during long-time use.
- High elongation and excellent tear resistance, resistant to cracking under repeated bending.
- Anti-aging and anti-yellowing, keep stable appearance after long service.
- Moderate fluidity, ideal for insoles with complex textures and breathable holes.
- Adjustable hardness to achieve comfortable softness, custom color available.
| Parameter | Value |
|---|---|
| Material Form | 20260730-3 |
| Appearance | Translucent / Custom Color Liquid |
| Hardness | 10-40 Shore A |
| Density | 1.08-1.15 g/cm³ |
| Tensile Strength | ≥ 6.5 MPa |
| Elongation at Break | ≥ 600% |
| Tear Strength | 15 KN/m |
| Max Continuous Operating Temp | 300℃ |
| Storage | 12 months for unopened barrels in cool dry storage |
Compliant with FDA, LFGB, RoHS and REACH environmental safety standards
One-stop food-grade LSR material solutions + full injection molding technical guidance | 24-hour online technical support
Product Packaging:
- Solid silicone rubber packed in sealed export cartons to avoid dust and moisture contamination
- Each carton printed with product model, batch number and storage shelf life
- Standard carton size for convenient long-distance sea and land transportation
Shipping:
- Global sea & land logistics delivery supported
- Outer cartons marked with model, gross weight and chemical safety warning labels
- Cooperate with qualified cross-border logistics suppliers to guarantee on-time and undamaged delivery

This high-resilience formula features excellent resistance to permanent compression deformation. It maintains cushioning performance and is not easy to collapse under normal use.
Low-odor platinum formula without small molecule precipitation. Gentle formula, suitable for long-term contact with foot skin.
20A~25A recommended for daily comfortable insoles; 30A~40A for orthotic support insoles; 15A for soft massage foot pads.
It has moderate fluidity and good filling capacity, which can steadily mold insoles with fine structures and breathable grooves.
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