Plaslok 308 Black (COM) Mineral/Flock Filled Phenolic Molding Compound

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Plaslok 308 Black (COM) Mineral/Flock Filled Phenolic Molding Compound (discontinued **)
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Mineral/Flock 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 308 is a two-stage, mineral and flock-filled phenolic molding compound designed to withstand the hostile environment of high abrasion and high tangential speed of engine pulleys. It is characterized by both exceptional strength and good surface appearance. Data provided by Plaslok Corporation.
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Physical Properties	Original Value	Comments

Density	1.46 g/cc	ASTM D792
Apparent Bulk Density	0.500 g/cc	ASTM D1895
Water Absorption	0.40 %	ASTM D570
Linear Mold Shrinkage	0.0045 cm/cm	Compression; ASTM D955

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	52.0 MPa	ASTM D638
Flexural Yield Strength	83.0 MPa	ASTM D790
Flexural Modulus	6.90 GPa	ASTM D790
Compressive Yield Strength	166 MPa	ASTM D695
Izod Impact, Notched	0.290 J/cm	ASTM D256

Electrical Properties	Original Value	Comments
Electrical Resistivity	2.20e+10 ohm-cm	ASTM D257
Dielectric Strength	12.2 kV/mm	ASTM D149
Comparative Tracking Index	180 V	UL 746

**
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PZ90P19 / 21104

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