This soft density Silicone sponge is manufactured in a closed cell construction. It is a high temperature, low torque gasket material impervious to a wide range of media with excellent resistance to atmospheric attack. Therefore, silicone sponge can achieve IP65 and IP66 ratings for sealing performance. This gasket material retains flexibility at high and low temperature, and offers excellent compression set resistance. Phelps can do die-cutting, waterjet cutting, strip slitting to meet your application requirements.