- Tear Strength:45.0 - 45.0 kN/m
Silopren™ LSR 4640 is a two-component liquid silicone rubber for injection molding processes. The material performance is particularly characterized by high reactivity, low viscosity and high tear strength. The LSR 4640 enables particularly the production of parts for healthcare devices covering by USP Class VI such as sealing elements, O-rings, diaphragms, ear plugs, bellows, baby teats, respiratory devices, air vent flaps, tube connectors, catheters and mats.Key Features and BenefitsVulcanisates consisting of LSR 4640 are distinguished by the following properties: Low viscosity Fast cure High tear strength Sterilisable with ethylene oxide, steam and gamma radiation Long service life at dynamic stress Neutral odor and taste High recovery after puncture High temperature stability compliance with US Pharmacopeia XXIII, Class VI (maximum contact time with human tissue 28 days.