Silopren™ LSR 4655 SL is a self-lubricating, two-part liquid silicone grade designed for biopharmaceutical and healthcare applications. It has a Shore A hardness (durometer) of 55.
Silopren™ LSR 4655 SL is a family of liquid silicone rubber (LSR) for healthcare device designers looking to improve production by benefiting from increased lubricity from this portfolio. Specialized molders require a high-slip surface and cannot achieve this with traditional silicone rubber components.
Color: Transparent
Shore A hardness: 55
Tensile strength, psi: 1,160
Tensile strength, N/mm2: 8
Elongation at break, %: 450
Tear, die B, ppi: 220
Specific gravity: 1.13
Comp. set 22 hrs @ 23°C, %: 1.6
Primary Chemistry: Liquid Silicone Rubber
Two component
Self-lubricating
Improved overmolding and mounting efficiency
Biocompatible
USP Class IV and ISO 10993 (parts 5, 6, 10, 11) compliant
Lack of lubrication requiring an additional slip additive
Mold fouling due to rapid lubricant surface bloom
Occurrence of self-healing of slit valves due to increase lubricant surface bloom
Lack of mounting efficiency of molded silicone components
Needle-free access valves
Healthcare devices, such as respirators and operating surgery components
Catheters
CPAP machines and masks
O-rings
Stoppers
Seals
Assembled parts
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