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	Metric	English	Comments

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

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	82.7 MPa	12000 psi	ISO 527
Tensile Modulus	13.8 GPa	2000 ksi	tangent; ISO 527
Flexural Strength	179 MPa	26000 psi	ISO 178
Flexural Modulus	11.7 GPa	1700 ksi	Tangent; ISO 178
Compressive Strength	310 MPa	45000 psi	ASTM D695
Poissons Ratio	0.33	0.33	ISO 527
Shear Modulus	5.19 GPa	753 ksi	Calculated
Izod Impact, Notched	13.9 J/cm	26.0 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear	36.0 µm/m-°C @Temperature 20.0 °C	20.0 µin/in-°F @Temperature 68.0 °F	Z-direction; ASTM D696
CTE, linear, Transverse to Flow	27.0 µm/m-°C @Temperature 20.0 °C	15.0 µin/in-°F @Temperature 68.0 °F	XY-direction; ASTM D696
Specific Heat Capacity	1.51 J/g-°C	0.360 BTU/lb-°F	ASTM D1269E
Thermal Conductivity	0.300 W/m-K	2.08 BTU-in/hr-ft²-°F	ASTM D1269E
Deflection Temperature at 1.8 MPa (264 psi)	271 °C	520 °F	ASTM D648
Glass Transition Temp, Tg	188 °C	370 °F	ASTM D4065-01

**
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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