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Pomalux Acetal Copolymer

Pomalux ® is a high-performance acetal copolymer that has excellent mechanical, electrical, and wear properties. It is engineered to provide outstanding dimensional stability, even machining parts with complex geometries. Pomalux ® is an excellent choice for many bearing and wear applications since it has low coefficient of friction and wears well in both wet and dry environments. It is widely used for assembly jigs and fixtures because of its inherent dimensional stability and excellent wear properties.

Pomalux ® is often specified for electrical applications when low moisture absorption and high dielectric strength are required. Both natural and black Pomalux ® are FDA compliant for use in food processing machinery.

Advantages of Pomalux ®:

• High strength and stiffness
• Low friction
• Easy to machine
• Good dimensional stability
• Low moisture absorption
• Resists abrasive wear in both wet and dry environments
• Good chemical resistance
• Excellent electrical properties
• FDA compliant

Do you need Fabrication or Machining for Pomalux?

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At a Glance

Available In
Sheet, Rod, Tube, Film

FDA Compliant, ITAR Registered

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Technical Information

Stock Products Properties Applications Advantages Downloads

Stock Products

Sheet .060 – 6” 24” x 48’, 12” x 48”, 48” x 96” Natural & Black
Rod 1/8” – 12” 96”, 120” Natural & Black
Tube ½” – 4” ID 120” Natural
Film .010 – .060 Natural & Black

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.


Physical PropertiesUnitsASTMResults
Density lb/in³ D792 1.41
Water Absorption, 24 hrs % D570 0.22
Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 8,800
Tensile Modulus psi D638 410000
Tensile Elongation @Break % D638 30
Flexural Strength psi D790 12
Flexural Modulus psi D790 375000
Compressive Strength psi D695 16000
Compressive Modulus psi D695 400
Hardness, Rockwell R D785 M80
IZOD Impact Strength Notched ft-lb/in D256 1.2
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion (x 10^-5 in./in./°F) 4.7
Heat Deflection Temp at 264 psi °F 219
Thermal Conductivity BTU-in/ft²-hr-°F 1.6
Thermal Conductivity BTU-in/ft²-hr-°F 1.6
Flammability Rating HB


  • Jigs & fixtures
  • Bushings
  • Pump & valve parts
  • Bearings
  • Gears
  • Electrical components
  • Wear pads


  • Easy to machine
  • Good dimensional stability
  • Low moisture absorption
  • FDA Compliant
  • Excellent chemical resistance
  • Low friction


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