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Silopren™ LSR 4070 is a two-component 70A medical-grade liquid silicone rubber with high transparency, biocompatibility, sterilization, and high recovery after puncture.
Silopren™ LSR 4070 is a two-component liquid silicone used to injection mold low-durometer parts. Silopren™ LSR 4070 offers silicone manufacturers 1:1 mix ratios that are transparent, easily pigmented, and processed. Silopren™ LSR 4070 is FDA and USP Class VI- compliant, making it suitable for healthcare applications.
Momentive performance materials such as Silopren™ LSR 4070 offer medical devices with high transparency and excellent rubber-elastic properties. After vulcanization and incorporation of Silopren™ LSR 4070, silicone rubber exhibits outstanding properties for silicone medical devices from biocompatibility, sterilization, and high thermal stability.
Form: Liquid
Color: Transparent
Density: 1.14 g/cm³
Shore A hardness: 70
Tensile strength, N/mm²: 9.0
Elongation at break, %: 400
Tear strength, N/mm: 20
Compression set, (22 h at 175°C), %: 25
Excellent biocompatibility
Stability to ozone and UV light
Good transparency
High thermal stability
High recovery after puncture
Easily pigmentable
Sterilizable with steam, gamma radiation, and ethylene oxide
Regulatory approvals for use of liquid silicone rubbers in medical and healthcare parts
Low resistance and pigmentation issues of liquid silicones
Lack of sterilization capabilities and biocompatibility for medical applications
Elastomeric articles
Sealing elements
Bellows
Ear plugs
Pipette nipples
Catheters
Vibration dampers
Tube connectors
Medical equipment parts and mats
Learn about Momentive range of fluorosilicone elastomers that are excellent for a wide range of industrial and transportation harsh conditions.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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