SBC(Styrene-Butadiene Copolymers) is known for their glass-like clarity, high impact strength and value. These durable copolymers offer a balance of performance and economics that bridge the gap between high cost, clear engineering polymers and low cost, brittle plastics like general purpose polystyrene.

K-resin which is a famous brand name of SBC is a family of clear resins produced by Chevron Phillips Chemical Company Ltd. SBC were commercialized in the early 1970's. Since that time, they have grown steadily in the marketplace as more and more applications have been developed utilizing the unique blend of sparkling clarity and impact strength.