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What is SEBS? Styrene Ethylene Butylene Styrene (SEBS) block copolymer is a type of thermoplastic elastomer that can be used to modify plastics or blended to make thermoplastic rubber.


As a leading manufacturer of SEBS polymer, LCY produces Globalprene SEBS, a hydrogenated form of SBS with a higher content of 1,2-vinyl structure. After hydrogenation, the copolymer consists of polystyrene (S) - polyethylene (E) - polybutylene (B) - polystyrene (S), hence abbreviated as SEBS. Hydrogenation virtually eliminates double bonds in the SBS molecules, significantly reducing degradation by Oxygen, Ozone and UV. As a result, SEBS polymers have improved service temperature, oxidation resistance, creep resistance and compression set.

Features and Benefits of SEBS Polymers

  • High temperature resistance
  • Excellent aging resistance property
  • Superior electrical properties
  • Good solubility, compounding performance, and excellent oil absorption
  • Ready-to-use elastomer without vulcanization

SEBS Applications

SEBS polymer properties that make it ideal for outsole, midsole and insole footwear applications:

  • Excellent rebound and shock absorption performance
  • Plasticizer and vulcanization not required
  • Good colorability, colorless

SEBS polymer properties that make it ideal for plastic & film modification applications: Soft, elastic, high hysteresis, improves low-temperature impact strength, low gel content, suitable for multilayer composites


SEBS plastic applications:

  • Elastic films for nonwoven fabric
  • Industrial packaging films, food packaging films
  • IC carrier tapes
  • Protect films

SEBS rubber properties that make it ideal for automotive applications: Lightweight, high elasticity, high impact strength, high processability, good resistance to low temperatures and weathering


SEBS rubber applications in the automotive industry:

  • Handles, steering wheels, soft interior trim, and accessories
  • Door and window seals, sleeves, and gaskets
  • Bumpers, dashboards
  • Soundproofing foam materials

Excellent low-temperature flexibility and superior elastic recovery of SEBS thermoplastic elastomers improves the softening point of asphalt and increases its range of high- and low-temperature resistance.


These properties make SEBS polymers ideal for asphalt modifications and waterproofing applications:

  • Asphalt modification for roads
  • Roof and waterproofing material coating
  • Self-adhered asphalt waterproofing membrane
  • Back-adhesive asphalt waterproofing membrane & back adhesive

Ideal for spray, brush and roller application of adhesives, SEBS polymers provide excellent adhesive performance and versatility for bonding in a wide range of materials.


SEBS applications:

  • Hot melt adhesive-Tapes and label
  • Adhesives in medical supplies and hygiene materials
  • Protective films, sealants
  • Solvent-based adhesives, all-purpose adhesive

SEBS polymer properties that make it ideal for greases: Excellent transparency, soft, good elasticity recovery, shear-thinning behavior and thixotropic behavior to control viscosity and flow of grease


SEBS applications:

  • Gel candles
  • Soft and transparent toys
  • Wire and fiber optical cable filling gel
  • Cosmetics
  • Oil thickeners

SEBS polymer properties that make it ideal for medical applications: Excellent transparency, high flexibility, kink resistance, no plasticizer required, heat sealable, suitable for extrusion, ISO 10993 & USP VI certified


SEBS applications:

  • Soft bags, tubing, and rubber stoppers for infusion
  • Medical equipment and parts
  • Plastic modification for medical supplies
  • Alternative to natural rubber, PVC, and latex

Properties of SEBS polymer that makes it suitable for artificial leather: Soft, highly elastic, easy to dye, easy to process, weather resistant, good resistance to low temperature

SEBS Polymer Product Specifications

GradeStructureBD/SMApplication Keywords
7533Linear70/30 Plastic modification, footwear and foam, car
7550Linear70/30Plastic modification, Footwear and foam, Asphalt modification and waterproofing, Adhesive, and Oil modification
7550ULinear70/30 Plastic modification, Footwear and foam, Asphalt modification and waterproofing, Adhesive, and Oil modification
7551Linear67/33 Plastic modification, footwear and foaming, asphalt modification and waterproofing
7554Linear69/31 Plastic modification and Asphalt modification and waterproofing
7554ULinear69/31 Plastic modification and water proof
9526DLinear69/31 Adhesive, protective film, Plastic modification, and Impact resistant toughening
9550Linear70/30 Plastic modification, medical, and Adhesive
9550ULinear70/30 Plastic modification, medical, and Adhesive
9551Linear67/33 Plastic modification and medical
9551ULinear67/33 Plastic modification and medical
9552Linear70/30 Plastic modification, water proof, medical, and sticky
9552ULinear70/30 Plastic modification, water proof, medical, and sticky
9557DLinear87/13 Plastic modification, water proof, film, Adhesive, and sealant
9645DRadial87/13 medical, film, Plastic modification, PP impact resistant toughening, and Adhesive
9901Linear70/30 Plastic modification, Adhesive, and Sealants

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