Americas Styrenics Styron® 482 High Impact Polystyrene

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Americas Styrenics Styron® 482 High Impact Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	STYRON® 482 high impact polystyrene resin is a high flow resin typically used in toys. When used unmodified for the manufacture of food contact articles STYRON 482 complies with the US Food, Drug and Cosmetic Act and Food Additive Regulation 21 CFR 177.1640. The regulation should be consulted for complete details. Data provided by Dow Chemical. Americas Styrenics was formed in 2008 as a joint venture between Dow Chemical and Chevron Phillips Chemical Company. Styron was a Dow trade name before the JV formation.
Key Words:	HIPS
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Physical Properties	Metric	English	Comments

Density	1.04 g/cc	0.0376 lb/in³	ASTM Data
Linear Mold Shrinkage	0.0050 cm/cm	0.0050 in/in
Melt Flow	8.5 g/10 min @Load 5.00 kg, Temperature 200 °C	8.5 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM Data

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	75	75
Tensile Strength, Ultimate	14.0 MPa	2030 psi	ASTM Data
Tensile Strength, Yield	15.0 MPa	2180 psi	ASTM Data
Elongation at Break	65 %	65 %	ASTM Data
Elongation at Yield	1.1 %	1.1 %	ISO Data
Tensile Modulus	1.56 GPa	226 ksi	ASTM Data
Izod Impact, Notched	2.19 J/cm	4.10 ft-lb/in	ASTM Data
Charpy Impact Unnotched	10.9 J/cm²	51.9 ft-lb/in²	ISO Data, Low Temp
	NB	NB	ISO Data
Charpy Impact, Notched	0.800 J/cm²	3.81 ft-lb/in²	ISO Data, Low Temp
	1.70 J/cm²	8.09 ft-lb/in²	ISO Data

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	90.0 µm/m-°C @Temperature 20.0 °C	50.0 µin/in-°F @Temperature 68.0 °F	ASTM data
Deflection Temperature at 0.46 MPa (66 psi)	79.0 °C	174 °F	Unannealed; ASTM Data
Deflection Temperature at 1.8 MPa (264 psi)	73.0 °C	163 °F	Unannealed; ASTM Data
Vicat Softening Point	96.0 °C	205 °F
Flammability, UL94	HB @Thickness 3.10 mm	HB @Thickness 0.122 in

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	See notes for details.

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PDW157 / 34388

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