Celanese Celcon® LW90F5 Tetrafluoroethylene Filled Acetal Copolymer

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Celanese Celcon® LW90F5 Tetrafluoroethylene Filled Acetal Copolymer
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, PTFE Filled
Material Notes:	Description: Celcon LW90F5 is an M90 based acetal copolymer formulated with a tetrafluoroethylene filler. It is designed for use in wear applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants can not be tolerated. Information provided by Celanese Corporation.
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Physical Properties	Metric	English	Comments

Density	1.43 g/cc	0.0517 lb/in³	ASTM D792
	1.50 g/cc	0.0542 lb/in³	ISO 1183
Linear Mold Shrinkage	0.022 cm/cm	0.022 in/in	ASTM D955
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	48.0 MPa	6960 psi	50 mm/min; ISO 527-2/1A
Flexural Modulus	2.30 GPa	334 ksi	ISO 178
Izod Impact, Notched (ISO)	4.20 kJ/m²	2.00 ft-lb/in²	ISO 180/1A

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	87.0 °C	189 °F	ISO 75-1, -2

Processing Properties	Metric	English	Comments
Melt Temperature	182 - 199 °C	360 - 390 °F
Mold Temperature	77.0 - 93.0 °C	171 - 199 °F
Drying Temperature	82.2 °C	180 °F
Dry Time	3 hour	3 hour
Injection Pressure	75.8 - 110 MPa	11000 - 16000 psi

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PHCW22 / 45963

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