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Ensinger PEI

LNP Lubricomp® KL-4540 D HP Acetal (POM) Homopolymer, Silicone + PTFE Lubricant  (discontinued **)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Homopolymer, PTFE-Filled
Material Notes:
  • Features: Lubricated
  • Forms: Pellets
  • Processing Method: Injection Molding

Information provided by LNP, a GE Plastics Company.

This data sheet is labeled Discontinued; however many LNP grades are still active under new names instituted after the SABIC purchase.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.49 g/cc1.49 g/ccMethod A; ASTM D792
Density 1.49 g/cc0.0538 lb/in³ISO 1183
Water Absorption 0.20 %0.20 %at 24 hrs; ASTM D570
Linear Mold Shrinkage 0.021 - 0.022 cm/cm0.021 - 0.022 in/inASTM D955
Linear Mold Shrinkage, Transverse 0.021 cm/cm0.021 in/inASTM D955
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 50.3 MPa7300 psiASTM D638
Tensile Strength, Yield 50.3 MPa7300 psiASTM D638
Elongation at Break 13 %13 %ASTM D638
Elongation at Yield 11 %11 %ASTM D638
Tensile Modulus 2.21 GPa321 ksiASTM D638
Flexural Strength 75.8 MPa11000 psiASTM D790
Flexural Modulus 2.41 GPa350 ksiASTM D790
Izod Impact, Notched 0.480 J/cm
@Thickness 3.18 mm		0.899 ft-lb/in
@Thickness 0.125 in		ASTM D256
Izod Impact, Unnotched 4.48 J/cm
@Thickness 3.18 mm		8.39 ft-lb/in
@Thickness 0.125 in		ASTM D256
Izod Impact, Notched (ISO) 4.50 kJ/m²2.14 ft-lb/in²ISO 180
Izod Impact, Unnotched (ISO) 29.7 kJ/m²14.1 ft-lb/in²ISO 180
Falling Dart Impact 5.20 J3.84 ft-lbASTM D3763
Instrumented Impact Total Energy 0.820 J0.605 ft-lbMulti-Axial Instrumented Impact Energy; ISO 6603-2
Coefficient of Friction, Dynamic 0.250.25vs. Steel - @ 40 psi, 50 ft/min, tested in accordance with LNP WI-0687; ASTM D1894
Coefficient of Friction, Static 0.160.16vs. Steel @ 40 psi, in accordance with LNP WI-0687; ASTM D1894
K (wear) Factor 18.1 x 10-8 mm³/N-M9.00 x 10-10 in³-min/ft-lb-hr40psi, 50ft/min; tested in accordance with LNP WI-0687
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 163 °C325 °FUnannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 99.4 °C211 °FUnannealed; ASTM D648
 
Processing PropertiesMetricEnglishComments
Melt Temperature 199 - 213 °C390 - 415 °F
Mold Temperature 82.2 - 107 °C180 - 225 °F
Drying Temperature 82.2 °C180 °F
Dry Time 4 hour4 hour
Back Pressure 0.172 - 0.345 MPa24.9 - 50.0 psi

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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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.

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