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Delrin® 13% AF blend, supplied as a 2:1 blend of Acetal AF-100 and Acetal 150 resins, has excellent friction properties. Bearings made of Acetal AF blend can operate at higher speeds while exhibiting reduced wear. These bearings are also essentially free of slip-stick behavior because the static and dynamic coefficient of friction are closer than with most plastics. Acetal AF blend retains 90% of the strength that is inherent in unmodified Acetal. Some properties are changed due to the addition of the softer PTFE fiber. The natural color of Acetal AF blend is dark brown.
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|Sheet||.250 – 3”||24” x 48’, 12” x 48”, 48” x 96”||Dark Brown|
|Rod||.250 – 3″||96”, 120”||Dark 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.
|Water Absorption, 24 hrs||%||D570||0.2|
|Tensile Strength @ yield||psi||D638||8000|
|Tensile Elongation @Break||%||D638||15|
|Hardness, Rockwell R||D785||115|
|IZOD Impact Strength Notched||ft-lb/in||D256||0.7|
|Coeffcient of Linear Thermal Expansion||(x 10^-5 in./in./°F)||5.0|
|Heat Deflection Temp at 264 psi||°F||224|
|Max Operating Temp.||°F||180|
|Dielectric Strength. 1/8″ th.||V/mil||D149||400|
|Dielectric Constant @1 MHz||3.1|
|Dissipation [email protected] MHz||D150||0.01|
|Volume Resistivity, 50% RH||ohm-cm||D257||3.0 x 10^16|
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.