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Unital® Acetal (polyoxy-methylene) offers design engineers a superior blend of strength, stiffness, lubricity, and dimensional stability. These properties, along with inherent machining ease, have made Unital® one of the most widely used engineering grade thermoplastics. Unital® LF-13 utilizes a powdered PTFE at a 13% loading and is compliant with both FDA and USDA regulations at a cost that is up to 33% less than other filled acetal products, making it the workhorse of the enhanced wear acetal product family.

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At a Glance

Generic Name
Polyoxymethylene, Polyacetal

Available In
Sheet, Rod

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Sheet .250 – 3” 24” x 48’, 12” x 48”, 48” x 96” Brown
rod .250 – 6″ 96”, 120” Brown

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 1.48
Water Absorption, 24 hrs % D570 0.23
Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 8000
Tensile Modulus psi D638 600000
Tensile Elongation @Break % % 15
Flexural Strength psi D790 13500
Flexural Modulus psi D790 410000
Compressive Strength psi D695 15500
Compressive Modulus psi D695
Hardness, Rockwell R D785 89
IZOD Impact Strength Notched ft-lb/in D256 0.8
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion (x 10^-5 in./in./°F) 5.2
Heat Deflection Temp at 264 psi °F 235
Melting Temperature °F 347
Max Operating Temp. °F 185
Thermal Conductivity BTU-in/ft²-hr-°F n/a
Flammability Rating HB
Electrical PropertiesUnitsASTMResults
Dielectric Strength. 1/8″ th. V/mil D149
Dielectric Constant @1 MHz
Dissipation Factor@1 MHz D150
Volume Resistivity, 50% RH ohm-cm D257 10^15

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.


  • Bushings
  • Bearings
  • Seals
  • Gaskets
  • Valve seats
  • Gears


  • FDA Compliant
  • USDA Compliant
  • 3-A Dairy Compliant
  • 13% Powder Filled
  • Superior Wear Resistance
  • Easily Machined and Fabricated
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