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PTFE Seal Operating temperature

PTFE Operating temperature

PTFE is a thermoplastic polymer that is compatible with a wide range of lubricants and is far more chemically resistant than any other lip seal material. PTFE has a smooth, dust-proof surface. Seals with PTFE lip can withstand high surface speeds and last longer. The seal can withstand dry friction and is especially valuable for heavy-duty applications due to its excellent anti-fouling capabilities. PTFE is used as an auxiliary seal or as a primary seal in certain situations. For optimum performance, PTFE seals require high quality sealing contact surfaces and should be handled with special care. The normal operating temperature range is 70 to +200 °C (90 to +390 °F) and can reach 250 °C (480 °F).

caveat:

At temperatures above 300 °C (570 °F), all fluororubber and PTFE composites can produce dangerous fumes. This can happen, for example, if a torch is used when removing the bearing. Although smoke is generated only at such high temperatures, once the seal is overheated, it is dangerous to take it even after cooling. If you need to take PTFE or fluoro rubber seals that are subjected to the above high temperatures, you should pay attention to the following safety precautions:

Always wear protective goggles and gloves.

The remainder of the seal should be placed in a sealed plastic container labeled "Corrosive Material".

Safety precautions to be observed are included in the material safety data and are available on request.

 

If you come into contact with the skin, rinse with soap and plenty of water. If these materials get into your eyes, rinse them with plenty of water. Be sure to seek medical advice. This method is also applicable if smoke has been inhaled.

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