Styrene-butadiene-styrene (SBS) block copolymers are mainly composed of homopolymerized blocks of butadiene and styrene links. They offer exceptional tensile strength and surface friction coefficient, low￾temperature performance, electric properties, and good workability. SBS block copolymers can be used as a substitute for conventional vulcanized rubber owing to their high viscosity and elasticity. They can also be used as adhesives and sealants because of their tenacious properties.