NOVA Chemicals EPS M77BG Expanded Polystyrene

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NOVA Chemicals EPS M77BG Expanded Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Expanded Polystyrene (EPS)
Material Notes:	EPS has excellent physical properties, low energy consumption and has FDA compliant offerings. Its lightweight and proven performance makes it suitable for a wide variety of markets and applications including building & construction, geofoam, packaging, and cup & container. EPS enable customers to produce high-quality products that are sturdy, safe and durable. Features/Attributes: Low Density Potential, Controlled/Uniform, Expansion. Applications: Insulation, SIP's, Fabricated Packaging. Information provided by NOVA Chemicals.
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Physical Properties	Metric	English	Comments

Bulk Density	0.609 - 0.641 g/cc	0.0220 - 0.0231 lb/in³
Volatiles	6.5 %	6.5 %	Pentane, by weight
Bead Size	0.850 mm	0.0335 in	average size

Mechanical Properties	Metric	English	Comments
Tensile Strength	0.414 MPa	60.0 psi	@ 2 pcf; MIL-P-19644
	0.758 MPa	110 psi	@ 3.5 pcf; MIL-P-19644
	1.10 MPa	160 psi	@ 5 pcf; MIL-P-19644
Flexural Strength	0.138 MPa	20.0 psi	@ 1 pcf; ASTM C203
	0.758 MPa	110 psi	@ 3.5 pcf; ASTM C203
	1.14 MPa	165 psi	@ 5 pcf; ASTM C203
Compressive Strength	0.0621 MPa @Strain 10 %	9.00 psi @Strain 10 %	@ 1 pcf; ASTM D-1621
	0.207 MPa @Strain 10 %	30.0 psi @Strain 10 %	@ 2 pcf; ASTM D-1621
	0.276 MPa @Strain 10 %	40.0 psi @Strain 10 %	@ 2.5 pcf; ASTM D-1621

Thermal Properties	Metric	English	Comments
CTE, linear	63.0 µm/m-°C	35.0 µin/in-°F
Thermal Conductivity	0.0303 - 0.0346 W/m-K	0.210 - 0.240 BTU-in/hr-ft²-°F	K-factor, Lambda
	0.0339 W/m-K	0.235 BTU-in/hr-ft²-°F	@ 2.5 pcf; ASTM C-518
	0.0344 W/m-K	0.239 BTU-in/hr-ft²-°F	@ 2.0 pcf; ASTM C-518
	0.0349 W/m-K	0.242 BTU-in/hr-ft²-°F	@ 1.5 pcf; ASTM C-518
	0.0352 W/m-K	0.244 BTU-in/hr-ft²-°F	@ 1.25 pcf; ASTM C-518
	0.0360 W/m-K	0.250 BTU-in/hr-ft²-°F	@ 1.0 pcf; ASTM C-518
Insulation R Value	3.9 - 4.2	3.9 - 4.2	per inch
Maximum Service Temperature, Air	79.4 °C	175 °F

Descriptive Properties
Water Absorbed	0.03 lb/ft²		@ 5 pcf MIL P 19644
	0.04 lb/ft²		@ 1.5 pcf MIL P 19644
	0.04 lb/ft²		@ 2.0 pcf MIL P 19644
	0.04 lb/ft²		@ 2.5 pcf MIL P 19644
	0.04 lb/ft²		@ 3.0 pcf MIL P 19644
	0.05 lb/ft²		@ 1 pcf. MIL P 19644
Water Vapor Permeability (in)	0.5 - 1.5		ASTM C355. Plaques. Optimum fusion. 2.2 pcf
	0.5 - 1.5		ASTM C355. Plaques. Optimum fusion. 2.5 pcf
	0.5 - 2.0		ASTM C355. Plaques. Optimum fusion. 1.4 pcf
	1.0-2.0		ASTM C355. Plaques. Optimum fusion. 1.0 pcf
	1.0-2.0		ASTM C355. Plaques. Optimum fusion. 2.3 pcf
	1.5-3.0		ASTM C355. Plaques. Optimum fusion. 1.0 pcf

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PNOV623 / 249078

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