Plaslok 501 Black Electrical Grade Mineral/Flock Filled Phenolic Molding Compound

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Plaslok 501 Black Electrical Grade Mineral/Flock Filled Phenolic Molding Compound (discontinued **)
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Electrical Grade, Filled
Material Notes:	Plaslok Corporation was purchased by Plastics Engineering Company (maker of Plenco brand materials) in March 2000. The Plaslok name is no longer in use. Plaslok 501 is a two-stage, mineral and flock-filled phenolic molding compound designed for use in heat resistant and electrical applications. It is designed for elevated temperature exposure for extended periods of time. It exhibits good dimensional stability and flame resistance. Data provided by Plaslok Corporation.
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Physical Properties	Original Value	Comments

Density	1.71 g/cc	ASTM D792
Apparent Bulk Density	0.700 g/cc	ASTM D1895
Water Absorption	0.20 %	ASTM D570
Linear Mold Shrinkage	0.0030 cm/cm	Compression; ASTM D955

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	45.0 MPa	ASTM D638
Flexural Yield Strength	76.0 MPa	ASTM D790
Flexural Modulus	9.00 GPa	ASTM D790
Compressive Yield Strength	221 MPa	ASTM D695

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+12 ohm-cm	ASTM D257
Dielectric Constant	4.8 @Frequency 1e+6 Hz	ASTM D150
	6.5 @Frequency 60 Hz	ASTM D150
Dielectric Strength	13.0 kV/mm	ASTM D149
Dissipation Factor	0.030 @Frequency 1e+6 Hz	ASTM D150
	0.12 @Frequency 60 Hz	ASTM D150
Comparative Tracking Index	160 V	UL 746

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	177 °C	ASTM D648
UL RTI, Electrical	150 °C @Thickness 1.57 mm
UL RTI, Mechanical with Impact	150 °C @Thickness 1.57 mm
UL RTI, Mechanical without Impact	150 °C @Thickness 1.57 mm
Flammability, UL94	V-0 @Thickness 1.57 mm
	V-0 @Thickness 1.57 mm

**
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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PZ90P06 / 21091

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