... and specifications are accepted,we can build all kinds rubber gasket Product Name:rubber gasket1) Available materials: materials for silicone, NBR, fluorosilicone,viton ... and Dow elastomers, neoprene, HNBR, NBR+PVC, natural rubber, SBR, IR, IIR (butyl rubber), CR (neoprene), SBR, AU, ACM, CO; NSF-61 ...