A. Schulman Premi-Glas® 1281-32 VE Glass Reinforced Vinyl Ester SMC

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A. Schulman Premi-Glas® 1281-32 VE Glass Reinforced Vinyl Ester SMC (discontinued **)
Categories:	Polymer; Thermoset; Composite SMC; Filled/Reinforced Thermoset; Vinyl Ester; Vinyl Ester Sheet Molding Compound
Material Notes:	Description: Premi-Glas® 1281-32 VE SMC is a high strength glass reinforced vinyl ester sheet molding compound formulated for under-the-hood automotive applications. Key features and benefits: Designed for compression molding for optimal strength on large-span covers Excellent resistance to automotive chemicals and fluids, and to salt spray Replaces cast metals for reduced Noise, Vibration, and Harshness, plus molded-in color Excellent dimensional stability and creep resistance Excellent thermal properties and elevated temperature modulus retention Market: Composite PowerTrain Information provided by Premix. A. Schulman has acquired this former Premix product line.
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Physical Properties	Original Value	Comments

Specific Gravity	1.83 g/cc	ASTM D792
Water Absorption	0.20 %	ISO 62
Linear Mold Shrinkage	0.00050 cm/cm	ISO 2577

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	12000 psi	ISO 527
Tensile Modulus	2.00e+6 psi	tangent; ISO 527
Flexural Strength	26000 psi	ISO 178
Flexural Modulus	1.70e+6 psi	Tangent; ISO 178
Compressive Strength	45000 psi	ASTM D695
Poissons Ratio	0.33	ISO 527
Shear Modulus	5.19 GPa	Calculated
Izod Impact, Notched	26.0 ft-lb/in	ASTM D256

Thermal Properties	Original Value	Comments
CTE, linear	20.0 µin/in-°F @Temperature 20.0 °C	Z-direction; ASTM D696
CTE, linear, Transverse to Flow	15.0 µin/in-°F @Temperature 20.0 °C	XY-direction; ASTM D696
Specific Heat Capacity	0.360 BTU/lb-°F	ASTM D1269E
Thermal Conductivity	2.08 BTU-in/hr-ft²-°F	ASTM D1269E
Deflection Temperature at 1.8 MPa (264 psi)	520 °F	ASTM D648
Glass Transition Temp, Tg	370 °F	ASTM D4065-01

**
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