KRATON® G7820 THERMOPLASTIC RUBBER (SEBS) (Styrene Ethylene Butylene Styrene Block Copolymer)
Shell Elastomers - Kraton® Polymers Thermoplastic Rubber-G-7820
Kraton® G polymers based on SEBS (styrene ethylene butylene styrene) may be added to plastics and rubber-based products for applications including handlebar grips, toothbrushes, and sports mouth guards and car components. Strength and elasticity are improved and resistance to oxidation provided. The compounds can be overmoulded to the surface of hard plastics components to improve grip or appearance. Thermoplastic Elastomers combine the processing advantages of plastics with the rubber-like performance of Elastomers. Known as two-phase systems, these copolymers are comprised of both hard (plastic) and soft (elastomeric) molecular regions, with each region contributing advantages and limitations to the final material performance. Chemically, fully cured thermoset rubber particles are dispersed throughout a continuous thermoplastic matrix.
Kraton® has a broad range of applications that spans from bumpers to bellows, vibrational dampers, couplers, and
grommets. Also used throughout the automotive, major and small appliances, and aerospace industries.
Kraton® is a soft rubber like material and is opaque off white in color.
Hardness Nominal Values (English) Test Method
Injection Molded Shore A 91 ASTM D2240
Mechanical Nominal Values (English) Test Method
Tensile Modulus (300%) 900 psi ASTM D412
Tensile Strength 1,800 psi ASTM D412
Tensile Elongation 650 % ASTM D412
Tear Resistance, Die C 290 pli ASTM D624
Specific Gravity 1.14 ASTM D792