Technical datasheet

SEPTON™ 4033

Supplied byKuraray- Last Updated on Mar 2, 2026

SEPTON™ 4033 by Kuraray is a styrene ethylene ethylene propylene styrene copolymer (SEEPS). It offers better tensile strength, oil retention and PE compatibility than SEBS. It shows moderate elongation with exceptional oil absorbency property. It is also a recyclable grade.
  • It can also replace PVC in several applications with rubber-like compounds.
  • The high molecular weight product provides robust tensile strength and compression set.
  • It shows weather-, heat aging- and chemical resistance (acid, alkali, alcohol).
  • It possesses high elasticity & strength, low temperature and electrical properties (insulation).
  • It is soluble in petroleum benzene, toluene, hexane, chloroform, cyclohexane, tetrahydrofuran and partially soluble in ethyl acetate & methyl ethyl ketone.
  • It is insoluble in methanol, ethanol, acetone, water and dimethylformamide.
  • SEPTON™ 4033 is used in plastic modifiers, toys, sporting goods, films, soft touch grips, non-woven fabric and automotive parts applications.
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SEPTON™ 4033 properties

Mechanical properties

PropertiesValue & unitTest conditionTest method
100% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Elongation0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login
Specific Gravity0.0 Visible After LoginVisible After LoginVisible After Login
Styrene Content0.0 Visible After LoginVisible After LoginVisible After Login
Viscosity, Relative0.0 Visible After LoginVisible After LoginVisible After Login
Viscosity, Relative0.0 Visible After LoginVisible After LoginVisible After Login

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