Rubber Material Reference, Neoprene, EPDM, Buna-N
SBR: SBR: Styrene-butadiene-20 F / 212F : Good physical properties and abrasion resistance. Poor resistance to petroleum-based fluids. Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes. Ozone, strong acids, fats, oils, greases, most hydrocarbons. Butyl: IIR: Isobutene-isoprene-60 F / 250 F : Very good weathering resistance.