Delrin® AF PTFE-Filled (homopolymer)

This DuPont acetal resin is made from polymerized formaldehyde and finds uses similar to nylon. The material is rigid and has excellent mechanical and electrical properties making its use common in appliances and electronics.

Material Specifications
Physical Properties Units Test Delrin® Filled
Density lb/in.3
g/cm3		 D792 0.054
1.50
Water Absorption % D570 0.2
Mechanical Properties Units Test

Delrin® PTFE AF PTFE Filled
Tensile Strength psi D638 8,000
Tensile Modulespsi
 D638 435,000
Tensile Elongation at Break Tensile % D638 15
Flexural Strength psi
 D790 12,000
Flexural Modulus psi (Kpsi) D790 435,000
Compressive Strength psi D695 16,000
Compressive Modulus psi D695 350,000
Hardness Rockwell (Shore D) - D785 M85 / R115
Izod Impact Notched ft. - lb./in. D256 0.7
Thermal Properties Units Test

Delrin® PTFE AF PTFE Filled
Coefficient of Linear
Thermal Expansion 		10-5 in./in./°F D696 5.00
Heat Deflection Temperature at 264 psi °F/°C D648 244 / 118
Melting Temperature°F/°C D3418 347 / 175
Max. Use Temperature°F/°C - 180 / 82
Thermal Conductivity BTU- in./ft.2-hr.- °F
x10 - 4 cal/cm - sec. - °C		 C177 N/A
N/A
Flammability Rating - UL94 HB
Electrical Properties Units Test

Delrin® PTFE AF PTFE Filled
Dielectric Strength (V-mil) D149 400
Dielectric Constant at 1 MHz (60Hz) D150 3.1
Dissipation Factor at 1 MHz (60Hz) D150 0.010
Volume Resistivity (ohm - cm) at 50% RH D257 3.0 x 1016

The information supplied is not to be taken as a warranty or representation for which Technical Products, Inc. assumes legal responsibility, is offered solely for your consideration, investigation and verification. All risk of use, singly or in combination with other products, whether or not in accordance with the instructions, directions or suggestions is borne by the user.