... viton DuPont & Dow elastomers, neoprene, HNBR, NBR + PVC, natural rubber, SBR, IR, IIR (butylrubber), CR (neoprene), SBR, AU, ACM ... processes confirm to the ISO-90003) Excellent chemical and physical property4) RoHS directive compliant green products5) Rapid ... mold support and samples 6) Customer's design and specifications are accepted 7) Available in various sizes and colors Silicone Rubber Seals