... for silicone, NBR, fluorosilicone 2 Excellent chemical and physical property 3 RoHS directive 1) Available material: materials for silicone, NBR, fluorosilicone ... (FKM), viton DuPont & Dow elastomers, neoprene, HNBR, NBR + PVC, natural rubber, SBR, IR, IIR (butylrubber), CR (neoprene), SBR, AU, ACM, CO ... are accepted 7) Available in various sizes and colors Stopper rubber