A. Schulman Premi-Glas® 1200-30 Polyester SMC

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A. Schulman Premi-Glas® 1200-30 Polyester SMC
Categories:	Polymer; Thermoset; Composite SMC; Polyester, TS; Thermoset Polyester Glass SMC
Material Notes:	Premi-Glas® 1200-30 is a fiberglass-reinforced, thermoset, sheet molding compound designed for Class A Heavy Truck and Marine body panels and interior structural components where smooth flat surfaces, high strength and structural integrity are required. Key features and benefits are: In mold and powder coating capable. Low moisture absorption properties. Accepts standard automotive primers and paints. Excellent flexural strength and flexural modulus properties. Unidirectional fiber distribution for increased impact properties. Standard color – natural. Designed for compression molding in, matched metal molds. A. Schulman has acquired this former Premix product line.
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Physical Properties	Original Value	Comments

Specific Gravity	1.70 - 1.85 g/cc
Linear Mold Shrinkage	0.0015 - 0.0030 cm/cm	Polymerization Shrinkage

Mechanical Properties	Original Value	Comments
Tensile Strength	75.0 MPa	ASTM D638
Tensile Modulus	12.0 GPa	ASTM D638
Flexural Strength	180 MPa	ASTM D790
Flexural Modulus	11.0 GPa	ASTM D790
Compressive Strength	215 MPa	ASTM D695
Poissons Ratio	0.30
Shear Modulus	4.60 GPa	Calculated
Izod Impact, Notched	800 J/m	ASTM D256
Izod Impact, Unnotched	11.5 J/cm	ASTM D4812

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	35.0 µm/m-°C	Z Direction
CTE, linear, Transverse to Flow	25.0 µm/m-°C	XY Direction
Thermal Conductivity	0.300 W/m-K

Processing Properties	Original Value	Comments
Processing Temperature	150 °C	Compression Molding
Clamp Pressure	500 - 1000 psi	Molding Pressure

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PPREMIX56 / 58197

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