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Silopren™ LSR 4635 SL
Silopren™ LSR 4635 SL is a two-component liquid silicone rubber (LSR) that offers longer-lasting lubricating benefits for healthcare molded parts, delayed lubricant surface bloom, and lowers the coefficient of friction.
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- Manufacturer: Momentive
- Product Line: Momentive Silicone Elastomers
- Product: Liquid Silicone Rubber
- Industries: Elastomers
- Authorized Countries: Canada | United States
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Authorized Countries
Canada
United States
Overview
Momentive performance Silopren™ LSR 4635 SL two-series, self-lubricating liquid silicone rubber grade offers enhanced lubricity in healthcare applications requiring a high-slip surface that can be achieved in traditional silicone elastomer molded parts. After vulcanization, Momentive performance two-component elastomer solution experiences low compression set without postcuring. It also delays lubricant surface bloom to avoid fouling and self-healing of slit valves. Silopren™ LSR 4635 SL benefits injection molding manufacturers who require improved productivity and lubricating performance for molded elastomer parts.
Specifications
Form: Liquid
Hardness, Shore A: 35
Tensile strength (psi, N/mm²): 1060, 7.3
Elongation at break (%): 627
Tear, die B (ppi): 225,40
Specific gravity: 1.1
Compression set 22 hrs @ 23°C (%): 2.3
Primary Chemistry: Liquid silicone rubber (LSR)
Features & Benefits
- Longer lubricating performance that eliminates the requirement for secondary lubrication incorporated into the process
- Reduced self-healing in valve slits
- Delayed lubricant surface bloom that creates efficiency while avoiding mold fouling
- Improved slip surface that reduces the coefficient of friction (COF)
- Easy to color
- Excellent resistance to aging
- Low compression set without postcure
- Approved for use in healthcare molded silicone elastomer applications
Problems Solved
Lack of lubricating properties that create process bottlenecks and inefficiencies
Injection molding processes that face percolating of lubricants
Unsustainable manufacturing due to lubricating additives that increase environmental impact
Applications
Healthcare molded devices, such as tubing
Needle-free access valves
O-rings
Stoppers
Seals
Manufacturing assembled parts
Related Chemistries
Elastomers
Related Processes
Elastomers
Related Properties
Momentive Silicone Elastomers Articles
Momentive Silicone for Biopharmaceuticals
Learn how Momentive silicones are keep up with new technology and medical advances in the biopharmaceutical industry.
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