Mar-Bal MB5500 Thermoset Polyester Composite Molding Compound

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Mar-Bal MB5500 Thermoset Polyester Composite Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Thermoset Polyester Glass Filled BMC
Material Notes:	A superior heat resistant material. U.L. RTI rating of 160°C-170°C. Mar-Bal standard grades can be injection, compression and transfer molded. Information provided by Mar-Bal, Inc.
Vendors:	Mar-Bal is the leading integrated compounder and molder of BMC Thermoset composite products and value added finishing services. Call 440-543-7526 or visit Mar-Bal.com Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.75 - 1.80 g/cc	1.75 - 1.80 g/cc	ASTM D792
Bulk Factor	2.0	2.0	ASTM D1895
Water Absorption	0.12 % @Time 86400 sec	0.12 % @Time 24.0 hour	ASTM D570
Linear Mold Shrinkage	0.00050 - 0.0020 cm/cm	0.00050 - 0.0020 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	35 - 45	35 - 45	ASTM D2583
Tensile Strength	41.4 - 55.2 MPa	6000 - 8000 psi	ASTM D638
Flexural Strength	117 - 131 MPa	17000 - 19000 psi	ASTM D790
Flexural Modulus	11.0 - 12.4 GPa	1600 - 1800 ksi	ASTM D790
Compressive Strength	89.6 - 103 MPa	13000 - 15000 psi	ASTM D695
Shear Strength	48.3 - 55.2 MPa	7000 - 8000 psi	ASTM D732
Izod Impact, Notched	4.27 - 5.34 J/cm	8.00 - 10.0 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Dielectric Strength	13.8 kV/mm	350 kV/in	ASTM D149
Arc Resistance	>= 185 sec	>= 185 sec	ASTM D495
Track Resistance	6000 sec	6000 sec	Inclined-Plane Tracking; ASTM D2303

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	160 - 170 °C	320 - 338 °F	UL RTI
Deflection Temperature at 1.8 MPa (264 psi)	>= 260 °C	>= 500 °F	ASTM D648
Flammability, UL94	V-0	V-0

Descriptive Properties
Listed File E80533	Yes

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PMARB915 / 149953

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