styrene-butadiene rubber (SBR), a copolymer of butadiene and styrene and its performance close to that of natural rubber. It is currently the largest production of general-purpose synthetic rubber, which is characterized by the abrasion resistance, aging resistance and heat resistance than natural rubber, texture than natural rubber uniform. The disadvantages are: lower elasticity, anti-flex, poor tear resistance; processing performance is poor, especially poor self-adhesive and low green strength. Operating temperature range: **0 ° C to ***0 ° C
