PTFE seals are suitable for use in harsh environments with temperatures ranging from cryogenic to 300 °C in combination with highly aggressive media. Mixing virgin PTFE powder with different fillers gives PTFE specific properties.
Seals made from PTFE (Polytetrafluoroethylene) are used where many other sealing materials (like elastomers, PUR, fabric materials, etc.) fail to meet the required temperature range, chemical resistance or friction and wear requirements.
The characters of PTFE seals: • Thermal stability across a wide temperature range: PTFE ’s high melting point (342 °C) and morphological characteristics allow components made from the resin to be used continuously at service temperatures up to 260 °C. • Low friction/dry running capability: PTFE has the lowest friction coefficient of any known solid. It has self-lubricating capabilities, offering continuous dry running ability in dynamic sealing applications. • Extreme chemical resistance: The interpolymer chain bond strengths of PTFE preclude reaction with most chemicals, thereby making them chemically inert at elevated temperatures and pressures with virtually all industrial chemicals and solvents.
*PTFE is suitable for contact with food and satisfies FDA requirements