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Master Bond adhesives
NOVA Chemicals Dytherm® 170R Expandable Polystyrene  (discontinued **)
Categories: Polymer; Thermoplastic; Polystyrene (PS); Expanded Polystyrene (EPS)

Material Notes: This is a special flame retardant grade consisting of spherical beads of a blend of polystyrene and polyphenylene ether containing pentane as expansion agent, and a internal flame-retardant additive. It is typically used for medium density foam with improved thermal resistance.

Applications: This grade is used for medium density foam with wall-thickness generally greater than or equal to 10 mm and with improved thermal resistance. Typical applications include hot-water insulation, pipe-insulation, helmet inner liners, and automotive parts (interior and exterior).
Processing of DYTHERM beads on pressurized batch pre-expander is recommended. It can be process on a continuous pre-expander when higher densities are acceptable.

This grade should not be used for food contact applications.

Information provided by NOVA Chemicals.

Key Words: Expanded Polystyrene, EPS
Vendors:
Available Properties
  • Bulk Density
  • Density, Minimum achievable; Single stage pre-expansion in continuous expander at atmospheric pressure
  • Density, Normal molded density assuming cost optimized selection of processing conditions.
  • Bead Size, Breda Laboratory Analytical Methods 90.30
  • Bead Size
  • Styrene Content, Residual Styrene Monomer Content per Breda Laboratory Analytical Methods 90.16
  • Blowing Agent Content, Breda Laboratory Analytical Methods 90.18
  • Maximum Service Temperature, Air, Modified ISO 2796-1980; Typical maximum temperature to which parts can be exposed short term (1 hour) without significant deformation (<1%).
  
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Manufacturer Notes:
none

Category Notes
Plastic

**
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