... superior sealing properties in harsh environments.Description: Silicone Rubber Cord and Silicone Rubber Rod made from a 70 durometer silicone. ... is used widely in many other applications. Silicone rubber rods have outstanding ability to be resilient against harsh ... for O-rings, Seals, Slip rings, gaskets, bumpers, recoil rubber, laboratory uses, clean room gasketing, air purifier seals, electrical ...