Styrene Butadiene Rubber - (SBR) Rubber Sheet & Rolls - 1/4" Thick x 36" Width x 12" Length SBR rubber with minimum tensile strength of 725 PSI (5 MPA) This product is tough enough to be used as a snowplow rubber blade This black rubber is very affordable and available for immediate shipping! Hard rubber with a durometer of 65-75 offers limited pliability and elasticity This general purpose rubber is available in 8 thicknesses (1/16, 1/8, 3/16, 1/4, 3/8, 1/2, 3/4, 1)