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Delrin TECAFORM® MT is a specially formulated medical grade acetal. The material is resistant to multiple cleaning and disinfection agents, and to a number of solvents. It can be steam sterilized by medical industry’s usual methods, and will maintain good strength, stiffness, and dimensional stability. The material feedstock meets the requirements specified by the American Food and Drug Administration (FDA) and its code Federal Regulations, CFR 21. It has also been fully assessed for biocompatibility acording to U.S. Pharmacopia (USP) Class VI and ISO 10993. It is available in a wide variety of standard colors and custom colors as well. While used for a great number of medical applications, TECAFORM® MT is particularly suited for use as sizing trials in knee, hip, and shoulder replacement procedures.

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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” Wide variety
Rod .250 – 3″ 96”, 120” Wide variety

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 0.0509
Water Absorption, 24 hrs % D570 0.5
Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 7980
Tensile Modulus psi D638 305
Tensile Elongation @Break % D638 30
Flexural Strength psi D790
Flexural Modulus psi D790
Compressive Strength psi D695
Compressive Modulus psi D695
Hardness, Rockwell R D785
IZOD Impact Strength Notched ft-lb/in D256
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion (x 10^-5 in./in./°F) 5.5
Heat Deflection Temp at 264 psi °F 230
Melting Temperature °F 320
Max Operating Temp. °F
Thermal Conductivity BTU-in/ft²-hr-°F
Flammability Rating HB
Electrical PropertiesUnitsASTMResults
Dielectric Strength. 1/8″ th. V/mil D149
Dielectric Constant @1 MHz
Dissipation [email protected] MHz D150
Volume Resistivity, 50% RH ohm-cm D257 10^14

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
  • Medical equipment


  • Made form FDA compliant resin
  • Tested for biocompatability in compliance with USP Class VI
  • Easy machinability
  • Tested for cytotoxicity and compliance according to ISO 10993
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