Celanese Hostaform® WR140LG POM, UV Resistant

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Celanese Hostaform® WR140LG POM, UV Resistant
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Hostaform« acetal copolymer grade WR140LG Black is a specialty weatherable grade of acetal copolymer formulated to provide good flow with a low gloss finish and a UV stability necessary for exterior automotive applications. Information provided by Celanese
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Physical Properties	Metric	English	Comments

Density	1.33 g/cc	0.0480 lb/in³	ISO 1183
Linear Mold Shrinkage, Flow	0.016 cm/cm	0.016 in/in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.015 cm/cm	0.015 in/in	ISO 294-4
Melt Flow	13 g/10 min @Load 2.16 kg, Temperature 190 °C	13 g/10 min @Load 4.76 lb, Temperature 374 °F	[cm3/10min]; ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	41.0 MPa	5950 psi	50mm/min; ISO 527-2/1A
Elongation at Yield	10 %	10 %	50mm/min; ISO 527-2/1A
Tensile Modulus	1.80 GPa	261 ksi	50mm/min; ISO 527-2/1A
Flexural Modulus	1.85 GPa	268 ksi	ISO 178
Charpy Impact, Notched	0.360 J/cm²	1.71 ft-lb/in²	ISO 179/1eA
	0.360 J/cm² @Temperature -30.0 °C	1.71 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	130 µm/m-°C	72.2 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	130 µm/m-°C	72.2 µin/in-°F	ISO 11359-2
Melting Point	165 °C	329 °F	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	80.0 °C	176 °F	ISO 75-1, -2

Processing Properties	Metric	English	Comments
Processing Temperature	80.0 - 105 °C	176 - 221 °F	cavity
	180 - 200 °C	356 - 392 °F	hot runner
Zone 1	170 - 175 °C	338 - 347 °F
Zone 2	170 - 180 °C	338 - 356 °F
Zone 3	175 - 185 °C	347 - 365 °F
Zone 4	180 - 190 °C	356 - 374 °F
Die Temperature	185 - 195 °C	365 - 383 °F
Melt Temperature	180 - 195 °C	356 - 383 °F
Drying Temperature	105 - 110 °C	221 - 230 °F
Dry Time	3.00 hour	3.00 hour
Injection Pressure	60.0 - 120 MPa	8700 - 17400 psi
Hold Pressure	60.0 - 120 MPa	8700 - 17400 psi
Back Pressure	<= 4.00 MPa	<= 580 psi

Descriptive Properties
Injection molding	Yes
Injection speed	slow
Processing conditions acc. ISO	9988-2

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PHCQ433 / 178888

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