... , etc.2) Custom design rubber parts3) Materials include: silicone rubber, nitrile rubber, EPDM, neoprene rubber, viton DuPont & Dow elastomers, natural rubber, SBR, fluorosilicone, acrylics4) Usual ... , ozone, and weathering, and has moderate oil resistanceTypes of rubber used in making O Rings 1. Nitrile O Ring 2. Silicone O ...