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Engineering 185°F - 300°F | Acetal

DELRIN® AF blend - Teflon® fiber filled

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 Units Value
Physical Chemical Designation POM
Filler PTFE fibres
Density g/cm3 1.50
Mechanical Tensile Modulus @ 73 °F PSI 310,000
Tensile Strength @ Yld @ 73 °F PSI 8,100
Tensile Strength @ Brk @ 73 °F PSI
Shear Strength @ 73 °F PSI
Elongation @ Yld @ 73 °F % 10.3
Elongation @ Brk @ 73 °F %
Flexural Modulus @ 73 °F PSI 485,000
Flexural Strength @ 73 °F PSI 12,700
Compressive Modulus @ 73 °F PSI 250,000
Compressive Strength @ 73 °F, 10% strain PSI 12,500
Izod (charpy) Impact Strength @ 73 °F ft-lbs/in 1.0
Rockwell Hardness @ 73 °F M (R) Scale 79
Coefficient of Friction Static
Coefficient of Friction Dynamic, 40 PSI, 50 FPM
Wear (K) Factor in3-min/ft-lbs-hr
Limiting PV psi-fpm
Thermal Vicat Softening Point °F
Melting Temperature °F 347
Heat Deflection Temperature @ 66 °F 334
Heat Deflection Temperature @ 264 °F 244
Service Temperature Intermittent °F 300
Service Temperature Long Term °F 185
Thermal Expansion (CLTE) in/in/°F
Specific Heat BTU/lb-°F
Thermal Conductivity BTU-in/hr-ft2-°F
Electrical Surface Resistivity ohms/square
Volume Resistivity ohm-cm
Dielectric Strength V/mil
Dielectric Contant @ 60 HZ, 73 °F, 50% RH
Dissipation Factor @ 60 Hz, 73 °F
Other Moisture Absorption @ 24 hrs, 73 °F % 0.12
Moisture absorption @ Saturation, 73 °F %
Flammability UL 94 HB
Food Grade N
Relative Cost $$ $$