Powdered styrene-butadiene rubber (SBR) is widely used as polymer modified material in road asphalt modification, asphalt ductilizer, high viscosity asphalt, hydraulic asphalt and waterproof membrane. The modified styrene-butadiene rubber powder has more special functions, besides excellent low temperature performance, it also has excellent high temperature performance and elastic recovery ability. Appearance White powder Particle size (mesh) 40 Moisture content (%) 3 Molecular content (%) 200 thousand-300 thousand Bound styrene (%) 22.5-24.5 Mooney Viscosity (ML+4) 38-68 300% Elongation (Mpa) 10-15 Tensile strength (Mpa) 21 Elongation at break (%) 320