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Amatrium Materials AI
Dynasol SolpreneĀ® 4318 Thermoplastic Rubber SBS Dry
Categories: Polymer; Thermoplastic; Elastomer, TPE; Styrenic TPE

Material Notes: Solprene 4318 is a linear block copolymer of styrene and butadiene, having 32% of styrene content, most of it forming a polystyrene block, which gives the polymer a thermoplastic behavior. It has a non-staining antioxidant system; FDA approved for use in food contact applications and is essentially gel free with a very clear color. S-4318 is used as compounding ingredient for adhesives. The product is an excellent modifier for asphalt applications including self-adhesive roofing membrane and sealant. Also is used in thermoplastic injected shoe soles formulations. It is presented as free flowing porous crumb making easy its handling and dissolution.


  • Roofing & Plastic modification
  • Adhesives

Information provided by Dynasol

Available Properties
  • Volatiles, ASTM D-5668
  • Brookfield Viscosity, MA 04-3-064, 25% toluene solution
  • Viscosity Measure, NM 300-11, Toluene solution viscosity 5,23%
  • Melt Index of Compound, ASTM D-1238
  • Styrene Content, NM 202-07, Block
  • Styrene Content, ASTM D-5775, on polymer
  • Hardness, Shore A, ASTM D-2240
  • Tensile Strength at Break, ASTM D-412
  • Elongation at Break, ASTM D-412
  • 300% Modulus, ASTM D-412
  • FDA
Property Data

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Manufacturer Notes:

Category Notes
Thermoplastic Elastomer

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Lab Instruments
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