NOVA Chemicals Dytherm® 170R Expandable Polystyrene

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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%).

Property Data

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Manufacturer Notes:
none

Category Notes
Plastic

**
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