NOVA Chemicals Styrocell® F843B Expandable Polystyrene

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NOVA Chemicals Styrocell® F843B Expandable Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Expanded Polystyrene (EPS)
Material Notes:	A fast cycling fire retardant molding grade consisting of spherical polystyrene beads containing pentane as expansion agent, and an internal flame retardant additive. It is typically used for molding high density foam. Applications: This grade is used mainly for producing contour moldings with a wall thickness smaller than 10 mm. This grade should not be used for food contact applications. Information provided by NOVA Chemicals.
Key Words:	Expanded Polystyrene, EPS
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Physical Properties	Metric	English	Comments

Bulk Density	0.620 g/cc	0.0224 lb/in³
Density	>= 0.0250 g/cc	>= 0.000903 lb/in³	Minimum achievable; Single stage pre-expansion in continuous expander at atmospheric pressure
	0.0250 - 0.0400 g/cc	0.000903 - 0.00145 lb/in³	Normal molded density assuming cost optimized selection of processing conditions.; DIN 4102
Bead Size	0.200 - 0.400 mm	0.00787 - 0.0157 in
	0.700 - 1.00 mm	0.0276 - 0.0394 in	Carrington Laboratory Analytical Methods 2115

Chemical Properties	Metric	English	Comments
Styrene Content	<= 0.10 %	<= 0.10 %	Residual Styrene Monomer Content per Breda Laboratory Analytical Methods 90.16
Blowing Agent Content	4.6 - 6.0 %	4.6 - 6.0 %	Berre Laboratory Analytical Methods 0076

Descriptive Properties
Reaction to Fire	B1		PA III - 2.801 certificate, for foam thickness >=10 mm and density 8-50 kg/m³; DIN 4102

**
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PNOVA252 / 55153

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