Kraton™ D-4271 is a solid plastic elastomer of SBS type with medium hardness and balanced processability & mechanical properties. It is mainly used for asphalt modification and shoemaking, also applicable to pipes, belts, sheets, auto parts and adhesives. It can be blended with resins/rubbers to adjust viscosity, hardness, flexibility and bonding performance of formulations.
SBS block copolymer, solid plastic elastomer, medium hardness (Shore A 71)
Balanced melt flow rate, good processability for various forming processes
High elongation (1000%) and moderate tensile stress, excellent flexibility and flex resistance
Good compatibility with resins/rubbers, available as a performance modifier for blending systems
Multi-scenario applicability, suitable for asphalt modification and general industrial component manufacturing
Asphalt modification (road pavement, waterproof asphalt, improve toughness and compatibility)
Shoemaking industry (sole, shoe upper elastic structural components with medium hardness)
Plastic products (pipes, belts, sheets with adjustable flexibility and rigidity)
Industrial components (auto parts, medical devices, sporting goods with medium hardness demand)
Adhesives & modifiers (resin/rubber blending systems, adjust formulation performance)
| Basic Properties | |
| Chemical Name | Styrene/Butadiene/Styrene Block Copolymer (SBS) |
| Product Category | Plastic Elastomer |
| Physical Form | Solid |
| Density | 0.938 g/cm³ |
| Hardness (Shore A) | 71 |
| Melt Property | |
| Melt Flow Rate (MFR) | 11 g/10min |
| Mechanical Properties | |
| Tensile Stress | 2 MPa |
| Elongation at Break | 1000 % |
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