PTFE
Polytetrafluoroethylene (PTFE) is chemically inert, weatherable, has excellent electrical insulation, high temperature resistance, a low coefficient of friction and non-adhesive properties. PTFE can be skived or extruded into tapes and films that can be used for seals and gasket materials. PTFE shrinkable tubing can be used as roll covers, and to protect electrical parts or components. Teflon® is a familiar trade name for polytetrafluoroethylene (PTFE) made by DuPont.
| Mechanical Properties | |
|---|---|
| Tensile Stength | 4,000 |
| Tensile Elongation | 400 |
| Tensile Modulus | 66,700 |
| Izod Impact Strength | 3.5 |
| Flexural Strength | |
| Flexural Modulus | 72,000 |
| Compressive Strength | 1,000 |
| Compressive Modulus | |
| Dynamic Coefficient of Friction | 0.1 |
| Thermal Properties | |
|---|---|
| Heat Deflection Temperature at 66 PSI | 284 |
| Heat Deflection Temperature at 264 PSI | 131 |
| Maximum Serving Temperature for Short Term | 600 |
| Maximum Serving Temperature for Long Term | 500 |
| Thermal Conductivity | 1.7 |
| Coefficient of Linear Thermal Expansion | 6.50 x 10^5 |
| Flammability Rating | V-0 |
| Electric/Physical Properties | |
|---|---|
| Volume Resistivity | >1018 |
| Surface Resistivity | >1018 |
| Dielectric Strength | 300 |
| Specific Gravity | 2.15 |
| Toughness | R58 |
| Rockwell Hardness Shore D | 58 |
| Water Absorption | 0.01 |
