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Master Bond adhesives

Westlake Plastics Pomalux® Acetal Copolymer For Medical Applications  (discontinued **)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes: Replaced by Pomalux WM.

Medical grade Pomalux is made from acetal copolymer resin which allows machined products the ability to retain dimensional integrity, maintain stability in water and most chemicals at elevated temperatures. Pomalux products are opaque and are available in a wide array of standard colors as well as on a custom basis. Recommended sterilization techniques for Pomalux include EtO gas and steam autoclaving. Disinfectants and germicides generally have no effect on Pomalux, however, acidic solutions can degrade the polymer.

Information provided by Westlake Plastics.

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Physical PropertiesMetricEnglishComments
Density 1.41 g/cc0.0509 lb/in³ASTM D792
Water Absorption 0.22 %0.22 %ASTM D570; 24 hrs.
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 7878ASTM D785
Tensile Strength, Yield 60.7 MPa8800 psiASTM D638
Elongation at Break 75 %75 %ASTM D638
Tensile Modulus 2.62 GPa380 ksiASTM D638
Flexural Yield Strength 89.6 MPa13000 psiASTM D790
Flexural Modulus 2.59 GPa375 ksiASTM D790
Compressive Strength 31.0 MPa4500 psi1% deflection; ASTM D695
 110 MPa16000 psi10% deflection; ASTM D695
Fatigue Strength 27.6 MPa4000 psiFatigue Endurance; ASTM D 671
Shear Strength 53.1 MPa7700 psiASTM D732
Izod Impact, Notched 0.801 J/cm1.50 ft-lb/inASTM D256
Tensile Impact Strength 189 kJ/m²90.0 ft-lb/in²ASTM D1822
 
Thermal PropertiesMetricEnglishComments
CTE, linear 81.0 - 110 µm/m-°C
@Temperature 20.0 °C
45.0 - 61.0 µin/in-°F
@Temperature 68.0 °F
ASTM D696
Thermal Conductivity 0.231 W/m-K1.60 BTU-in/hr-ft²-°FASTM C177
Deflection Temperature at 0.46 MPa (66 psi) 158 °C316 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 110 °C230 °FASTM D648
Flammability, UL94 HB
@Thickness 15.2 mm
HB
@Thickness 0.600 in

**
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