Plaslok 309 Black (INJ) Mineral/Fiber Filled Phenolic Molding Compound

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Plaslok 309 Black (INJ) Mineral/Fiber Filled Phenolic Molding Compound (discontinued **)
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Mineral/Fiber 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 309 is a two-stage, mineral and fiber-filled phenolic molding compound having excellent impact strength; and as such, is considered a good candidate for replacing chopped-fiber filled compounds. It has superior surface finish, comparable with General Purpose phenolics. Because of the nature of the fiber used, this compound has very good latitude in injection molding situations. 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	0.0090 cm/cm	Injection; ASTM D955

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	56.0 MPa	ASTM D638
Flexural Yield Strength	86.0 MPa	ASTM D790
Flexural Modulus	6.90 GPa	ASTM D790
Compressive Yield Strength	235 MPa	ASTM D695
Izod Impact, Notched	0.210 J/cm	ASTM D256

Electrical Properties	Original Value	Comments
Dielectric Strength	12.2 kV/mm	ASTM D149
Comparative Tracking Index	180 V	UL 746

Thermal Properties	Original Value	Comments
UL RTI, Electrical	150 °C @Thickness 1.60 mm
UL RTI, Mechanical with Impact	150 °C @Thickness 1.60 mm
UL RTI, Mechanical without Impact	150 °C @Thickness 1.60 mm
Flammability, UL94	V-0 @Thickness 6.10 mm
	V-0 @Thickness 6.10 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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