Ensinger’s DELRIN®100AF blend stock shapes are a 13% PTFE fiber filled homopolymer acetal. They offer an improved coefficient of friction, better lubricity, and improved wear characteristics over unfilled and PTFE powder filled acetals.This advanced acetal material uses a combination of PTFE fibers uniformly dispersed in Delrin acetal resin. The combination results in improved wear characteristics along with strength, toughness, dimensional stability and machinability. The materials exceptional wear properties and internal lubrication serves to reduce or elimanate the need for external lubricants. Ensinger can also produce a full strength 20% PTFE filled version.

  • Excellent wear characteristics
  • Self lubricating
  • Low coefficient of friction
  • Maximum unmodified toughness
  • Superior load bearing characteristics

DELRIN®100AF is often used for applications such as bearing, bushings, cams and other antifriction devices that also require extra toughness.


Properties Condition Value Test Method Comment
Mechanical Modulus of elasticity (tensile test) 310,000 psi ASTM D 638
Tensile strength at yield 8,000 psi ASTM D 638
Elongation at yield 10.3 %
Flexural Strength 14,000 psi ASTM D 790
Modulus of elasticity (flexural test) 485,000 psi ASTM D 790
Compression strength 1% strain 2,200 psi ASTM D 695
Compression strength 10% strain 14,000 psi ASTM D 695
Impact strength (Izod) 1.0 ft-lbs/in ASTM D 256
Rockwell hardness M Scale 77 ASTM D 785
Thermal Melting temperature 347 °F
Deflection temperature @ 66 psi 334 °F ASTM D 648
Deflection temperature @ 264 psi 244 °F ASTM D 648
Service temperature Intermittent 300 °F
Service temperature Long term 185 °F
Other Moisture absorption @ 24 hrs, 73°F 0.12 % ASTM D 570
Flammability (UL94) HB 1) 1) Estimated


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