Westlake Plastics Pomalux® WR Polyoxymethylene copolymer

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Westlake Plastics Pomalux® WR Polyoxymethylene copolymer
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes:	Pomalux WR (Wear resistant polyoxymethylene copolymer) is an internally lubricated acetal copolymer. It offers enhanced wear resistance and lower coefficients of friction compared to standard acetal using a PFOA free permanent lubricant. Pomalux WR offers comparable wear and friction performance to PTFE filled POMc without the risk of voids and inclusions that are commonly associated with compression molded and extruded PTFE filed POMc. Similar to unfilled copolymer acetal, Pomalux WR offers high strength and stiffness and good chemical resistance making it an ideal material for load bearing and transmitting components where enhanced wear 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; Strength; Abrasion Resistant; Food Contact; Stiffness; Easy Machine; Wear Resistance Shapes: Compression Sheet; Extruded Rod Information provided by Westlake Plastics Co.
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Physical Properties	Original Value	Comments

Moisture Absorption	0.0200 % @Time 86400 sec	ISO 62

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	62.4 MPa	ASTM D638
Elongation at Break	37 %	ASTM D638
Flexural Strength	80.0 MPa	ASTM D790
Flexural Modulus	2430 MPa	ASTM D790
Izod Impact, Notched	65.5 J/m	Resistance; ASTM D256
	163.8 J/m	ASTM D256
Coefficient of Friction, Dynamic	0.44	ASTM D3702 Modified
Coefficient of Friction, Static	0.33	ASTM D3702 Modified
K (wear) Factor	32.6 x 10^-10 in³-min/ft-lb-hr	ASTM D3702 Modified

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	122 °C	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	0.5", 0.75", 1.0", 1.25", 1.5", 1.75"

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