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

Colour White Specific Gravity 2.13-2.18 g/cm┬│
Tensile Strength at Yield 250-300 N/mm┬▓ Elongation at Break 250-450%
Modulus of Elasticity 350-630 N/mm┬▓ Hardness (Shore D) 55-60
Co-efficient of Friction - to Steel - DRY 0.04 N/mm┬▓ 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