High-Precision Medical Grade Liquid Silicone Rubber for Silicone Valves with Excellent Sealing Performance

Product Overview

Medical Grade Liquid Silicone Rubber (LSR) 6250-50YH is specifically engineered for manufacturing high-performance silicone valves, including medical valves, one-way valves, and precision flow-control components. This material combines excellent elasticity, mechanical strength, and dimensional stability, ensuring reliable performance in critical sealing and flow regulation applications.

Silicone valves require materials with high resilience, low deformation, and consistent recovery performance. With a Shore A hardness of 50, RH6250-50YH delivers an optimal balance between flexibility and structural integrity, allowing valves to maintain precise functionality over repeated cycles.

Key Features

• Medical-grade platinum-cured silicone

• Excellent resilience and recovery performance

• High tear strength for repeated actuation

• Low tensile set for long-term sealing stability

• Good dimensional stability and shrinkage control

• Suitable for precision LSR injection molding

Typical Technical Data

Product Advantages

Reliable Sealing Performance
Low tensile set (1.7%) ensures minimal deformation, maintaining long-term sealing integrity in valve applications.

High Fatigue Resistance
Excellent resilience and elongation allow valves to withstand repeated opening and closing cycles without failure.

Precision Molding Capability
Controlled viscosity and shrinkage enable accurate production of complex valve geometries.

Enhanced Durability
High tear strength (30 kN/m) improves resistance to mechanical stress and prolongs service life.

Applications

• Medical silicone valves

• One-way valves

• Air and fluid control valves

• Pump valve components

• Precision flow control parts

Packaging

• 20 kg pails

• 200 kg drums

Store in a cool and dry place. Shelf life: 12 months.

About Ruihe New Material

Guangzhou Ruihe New Material Technology Co., Ltd is a professional manufacturer specializing in liquid silicone rubber (LSR) and solid silicone rubber (HCR). Our medical-grade silicone materials are widely applied in medical devices, baby care products, precision components, and industrial applications.

With advanced production technology and strict quality control, Ruihe provides reliable and customized silicone solutions for global customers.

FAQ

Q1: Why is LSR suitable for silicone valves?
Because of its excellent elasticity, resilience, and durability, LSR ensures stable valve performance under repeated operation.

Q2: What hardness is ideal for silicone valves?
Shore A 40–60 is commonly used. 6250-50YH offers a balanced performance for most valve applications.

Q3: Can this material handle repeated deformation?
Yes, it has high resilience and elongation, making it ideal for cyclic use.

Q4: Is it suitable for precision molding?
Yes, it is optimized for LSR injection molding and supports complex designs.