Rubber canvas seal (SBR, neoprene, EPDM, Buna-N) is a rubber plate with polyester, nylon, cotton or fiberglass fabric impregnated in rubber. Fabric reinforcement improves stability when using high pressure seals. The fabric helps in prevention of tearing. The construction of the material typically includes one layer of fabric for each thickness of 1/16 “

Rubber canvas combines the elasticity of rubber with the strength of the fabric.