... proof auto bumper 2. Heat resistant. 3. Wear proof. Rubber Auto bumper : 1. Materials: NBR, also NR, EPDM, ... ACM, HNBR, FLS, CR, SBR, SI, FPM, IIR, VT etc. 2. Characteristics: oil proof, aging resistant, heat resistant, wear resistant ... , chemical resistant, anti-corrosion, etc. 3. Hardness: ...