Category overview

Styrenic Block Copolymer (SBC / TPE-S)

Based on 2873 products - Last update on the Sep 16, 2025

Styrenic Block Copolymer (SBC) appears as translucent to transparent, elastic pellets or granules with excellent clarity potential and a soft, rubber-like feel. Key features include excellent elasticity, high clarity potential, good processing characteristics, colorability, adhesive properties, and good processability. SBCs are primarily used in adhesives and sealants, footwear components, medical devices, elastic films, grips and handles, and soft-touch overmolding. 

Alternatives include thermoplastic polyurethanes (TPUs), thermoplastic vulcanizates (TPVs), and thermoset rubbers. The industry trend shows increasing development of specialty grades for medical applications and growing focus on recycled and bio-based formulations. Sub-types include styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene/butylene-styrene (SEBS), hydrogenated versions, and numerous specialty formulations incorporating oils, resins, and other modifiers.

Properties

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OnFlex™ S KE 70A-3S1726 Black UV

by Avient (Formerly PolyOne)

OnFlex™ S KE 70A-3S1726 Black UV by Avient (Formerly PolyOne) hydrogenated styrenic block copolymer (SBC). It exhibits good scratch resistance, wide hardness range, low temperature flexibility, excellent mechanical properties, good processability, colorability, surface appearance and compression set performance, even at elevated temperatures. It provides excellent adhesion to copolyester and polar substrates including, polycarbonate (PC), polyvinylchloride (PVC), acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA) and acrylonitrile butadiene styrene & polycarbonate alloy (PC + ABS). It is processed by coextrusion and multi injection molding methods like overmolding and insert molding. OnFlex™ S KE 70A-3S1726 Black UV by Avient (Formerly PolyOne) is recommended for automotive, industrial and consumer applications, like power and other tools. It complies with RoHS.
  • Sustainable option

OnFlex™ S EF 50A-3S1965

by Avient (Formerly PolyOne)

OnFlex™ S EF 50A-3S1965 by Avient (Formerly PolyOne) is a semi-filled, general purpose, hydrogenated styrenic block copolymer (SBC). It exhibits medium density, high flow, excellent processability, low compression set, wide hardness- and temperature operating range. It possesses good colorability and mechanical properties. It is processed by injection molding process. OnFlex™ S EF 50A-3S1965 is recommended for appliances-, automotive-, industrial- and consumer applications. It complies with RoHS.
  • Sustainable option

Gravi-Tech™ GRV-TE1-090-W-NAT

by Avient (Formerly PolyOne)

Gravi-Tech™ GRV-TE1-090-W-NAT by Avient (Formerly PolyOne) is a non-toxic, styrene isoprene styrene block copolymer with high specific gravity. It is processed by injection molding. It offers design/process flexibility with metallic fillers, high performance alternative to lead and traditional metals. Gravi-Tech™ GRV-TE1-090-W-NAT is recommended for medical/healthcare, industrial applications, weighting/balancing, sporting goods and projectiles.

Styrenic Block Copolymer (SBC / TPE-S)