Kraton Performance Polymers, Inc. (NYSE: KRA), a leading global producer of styrenic block copolymers or "SBC's" (together with Kraton Polymers LLC and its other subsidiaries, "Kraton"), announced that its roof coating formulation containing Kraton G1643, a styrenic block copolymer (SBC), exceeds requirements in the ASTM International D6083 standard specification recognized in the elastomeric roof coating market

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