PTFE Rod & Sheet
PTFE has excellent chemical resistance and the lowest co-efficient of friction of any solid plastic. This material is tough and flexible, has a non-stick surface and can be used at temperatures between -260°C and +260°C. PTFE is impervious to water, has very good electrical insulation properties and is non-flammable. Applications include; valve seats, gaskets, 'O' rings, back-up rings, linings, insulators and bushes.Technical Specification
Toggle viewColour | White |
Specific Gravity | 2.13-2.18 g/cm³ |
Tensile Strength at Yield | 250-300 N/mm² |
Elongation at Break | 250-450% |
Modulus of Elasticity | 350-630 N/mm² |
Hardness (Shore D) | 55-60 |
Co-efficient of Friction - to Steel - DRY | 0.04 N/mm² |
Melting Point | 325°C |
Thermal Conductivity | 0.2-0.4 W/k-m |
Maximum Operating Temp. | 260°C |
Minimum Operating Temp. | -260°C |
Co-efficient of Linear Thermal Expansion | 14 x 10^-5 K^-1 |
Flammability (UL-94) | V0 |
Volume Resistivity | 10^18 ohm-cm |
Dielectric Strength | 65-85 Kv/mm |
UV Resistance | No attack |
Resistance to Hot Water | No attack |
Resistance to Strong Alkali | No attack |
Resistance to Strong Acid | No attack |
Resistance to Chlorinated Hydrocarbons | No attack |