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Styroflex® is a styrene-butadiene block copolymer (SBC) with the properties of a thermoplastic elastomer (S-TPE), suitable for extrusion (including both blown and cast film) and injection molding. Characterized by a combination of high resilience and toughness, optical clarity and process stability Styroflex® offers as well a good printability and good adhesion to many different polymers. In film applications, Styroflex® provides excellent stretch recovery, superior transparency and puncture resistance, high oxygen and moisture permeability. It is also employed as a high performance additive to increase toughness and e.g. the stress cracking resistance of styrenic and olefinic polymers.