Westlake Plastics Dielux® PTFE filled Acetal Copolymer

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Westlake Plastics Dielux® PTFE filled Acetal Copolymer
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, PTFE Filled
Material Notes:	Dielux PTFE filled acetal copolymer is an outstanding bearing and wear material for use in both wet and dry environments. It is frequently used in place of traditional metal and plastic bearing materials when low friction, excellent wear properties, and good dimensional stability are required. The PTFE filler allows Dielux to be used without additional lubricants in applications where grease and oil are undesirable. Information provided by Westlake Plastics.
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Physical Properties	Metric	English	Comments

Density	1.51 g/cc	0.0546 lb/in³	ASTM D792
Water Absorption	0.20 %	0.20 %	ASTM D570; 24 hrs.

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	44.8 MPa	6500 psi	ASTM D638
Elongation at Break	10 - 14 %	10 - 14 %	ASTM D638
Flexural Yield Strength	68.9 MPa	10000 psi	ASTM D790
Flexural Modulus	2.07 GPa	300 ksi	ASTM D790
Izod Impact, Notched	0.427 J/cm	0.800 ft-lb/in	ASTM D256
Coefficient of Friction, Dynamic	0.070	0.070	Dry vs. Steel
Coefficient of Friction, Static	0.15	0.15	Dry vs. Steel
Limiting Pressure Velocity	0.438 MPa-m/sec	12500 psi-ft/min	100 fpm vs. Steel

Thermal Properties	Metric	English	Comments
CTE, linear	97.2 µm/m-°C @Temperature 20.0 °C	54.0 µin/in-°F @Temperature 68.0 °F	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	98.9 °C	210 °F	ASTM D648

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