Westlake Plastics Pomalux® WRX Polyoxymethylene copolymer

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Westlake Plastics Pomalux® WRX Polyoxymethylene copolymer
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes:	Pomalux WRX (Wear resistant polyoxymethylene copolymer) is an internally lubricated acetal copolymer. It offers enhanced wear and abrasion resistance and lower coefficients of friction compared to Pomalux WR and is similarly formulated with a PFOA free permanent lubricant. Pomalux WRX offers enhanced wear and friction performance versus PTFE filled POMc without the risk of voids and inclusions that are commonly associated with compression molded and extruded PTFE filed POMc. Pomalux WRX offers high strength and stiffness and good chemical resistance making it an ideal material for load bearing and transmitting components where enhanced wear, abrasion and low friction performance are critical performance requirements such as gears, bearing, chain guides and other conveyor components. Product is available in natural (off white) and black. Other colors are available on a make to order basis. Colors Available: Black; Natural Attributes: Chemical Resistance; Stiffness; Abrasion Resistant; Food Contact; Strength; Wear Resistance Shapes: Compression Sheet; Extruded Rod Information provided by Westlake Plastics Co.
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Physical Properties	Metric	English	Comments

Moisture Absorption	0.220 % @Time 86400 sec	0.220 % @Time 24.0 hour	ISO 62

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	55.0 MPa	7980 psi	ASTM D638
Flexural Modulus	2.423 GPa	351.4 ksi	ASTM D790
Izod Impact, Notched	0.405 J/cm	0.759 ft-lb/in	Resistance; ASTM D256
	1.014 J/cm	1.900 ft-lb/in	ASTM D256
Coefficient of Friction, Dynamic	0.26	0.26	ASTM D3702 Modified
Coefficient of Friction, Static	0.30	0.30	ASTM D3702 Modified
K (wear) Factor	6.04 x 10^-8 mm³/N-M	3.00 x 10^-10 in³-min/ft-lb-hr	ASTM D3702 Modified

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	87.7 °C	190 °F	ASTM D648

Descriptive Properties
Compression Sheet Sizing	120" Length by 48" Width		0.5", 0.75", 1.0", 1.25", 1.5", 1.75", 2.0"
	48" Length by 24" Width		0.5", 0.75", 1.0", 1.25", 1.5", 1.75", 2.0"
	96" Length by 48" Width		0.5", 0.75", 1.0", 1.25", 1.5", 1.75", 2.0"
Rod Sizing	48" Length		2.25", 2.5", 2.75", 3.0", 3.25", 3.5"
	96" Length		2.0'", 2.25", 2.5", 2.75", 3.0", 3.25", 3.5"

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