A. Schulman Premi-Glas® 2203-30 CR-SX Fiberglass Reinforced SMC

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A. Schulman Premi-Glas® 2203-30 CR-SX Fiberglass Reinforced SMC
Categories:	Polymer; Thermoset; Composite SMC; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass SMC
Material Notes:	Description: Premi-Glas® 2203-30 CR-SX is a fiberglass reinforced thermoset Sheet Molding Compound formulated for excellent electrical properties and fire retardance; it also has very good thermal and dimensional stability, and corrosion resistance. Key features and benefits: Underwriters Laboratories 94-V0 flame resistance at 2.5 mm minimum wall thickness Formulated for moderate shrinkage to permit good dimensional stability while releasing from deep-draw moldings Refer to UL file number E42524 Market: Electrical/Flame Retardant Information provided by Premix. A. Schulman has acquired this former Premix product line.
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Physical Properties	Original Value	Comments

Specific Gravity	1.70 - 1.85 g/cc
Linear Mold Shrinkage	0.0015 - 0.0035 cm/cm	Polymerization Shrinkage

Mechanical Properties	Original Value	Comments
Tensile Strength	80.0 MPa	ASTM D638
Tensile Modulus	12.0 GPa	ASTM D638
Flexural Strength	180 MPa	ASTM D790
Flexural Modulus	10.0 GPa	ASTM D790
Poissons Ratio	0.30
Shear Modulus	4.60 GPa	Calculated
Izod Impact, Notched	850 J/m	ASTM D256
Izod Impact, Unnotched	12.0 J/cm	ASTM D4812

Electrical Properties	Original Value	Comments
Dielectric Strength	15.0 kV/mm	ASTM D149
Arc Resistance	180 sec	ASTM D495
Comparative Tracking Index	600 V	ASTM D2303

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
UL RTI, Electrical	130 °C	UL 746C
UL RTI, Mechanical with Impact	130 °C	UL 746C
UL RTI, Mechanical without Impact	130 °C	UL 746C
Flammability, UL94	V-0 @Thickness 2.50 mm

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

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