Why Liquid Silicone Rubber (LSR) is Ideal for Medical Parts？

Liquid Silicone Rubber (LSR) is widely used in medical applications because of its biocompatibility, durability, and resistance to extreme conditions. Here’s why LSR is the preferred choice for medical components:

1. Biocompatibility & Safety
   ✅ Meets Medical Standards – LSR complies with ISO 10993 & USP Class VI, making it safe for body contact and internal use.
   ✅ Non-toxic & Hypoallergenic – Does not cause allergic reactions or irritation.
   ✅ Minimal Extractables & Leachables – Ensures no harmful substances migrate into the body.
2. Resistance to Sterilization
   ✅ Withstands High Temperatures – Can be sterilized using:

Autoclaving (Steam, high heat)
Ethylene Oxide (EtO) sterilization
Gamma & E-Beam radiation
✅ Chemical Resistance – Unaffected by disinfectants and medical cleaning agents.

3. Durability & Performance
   ✅ Withstands Extreme Conditions – Operates in -50°C to 250°C without losing flexibility.
   ✅ High Elasticity & Tear Resistance – Maintains shape under stress, ideal for seals, gaskets, and tubing.
   ✅ Low Compression Set – Ensures long-term elasticity without permanent deformation.
4. Design Flexibility & Precision
   ✅ Injection Moldable – Suitable for high-precision medical devices with complex designs.
   ✅ Overmolding Compatibility – Bonds well with plastics, metals, and other silicones for multi-material components.
   ✅ Transparency & Color Customization – Can be clear or pigmented for aesthetic and functional requirements.
5. Chemical & Drug Resistance
   ✅ Stable in Medical Environments – Unaffected by bodily fluids, drugs, and harsh chemicals.
   ✅ No Absorption of Fluids – Prevents contamination and ensures material integrity.
6. Key Medical Applications of LSR
   Catheters & Tubing – Flexible, biocompatible, and sterilizable.
   Seals & Gaskets – Provides airtight and watertight protection.
   Syringe Stoppers & Valves – Maintains durability and chemical resistance.
   Wearable Medical Devices – Soft and skin-friendly for continuous use.
   Respiratory Masks & Anesthesia Equipment – Comfortable and hypoallergenic.
   Conclusion
   Liquid Silicone Rubber (LSR) is the gold standard for medical applications due to its biocompatibility, sterilization resistance, durability, and design flexibility. These properties make it the perfect material for safe, reliable, and long-lasting medical components.