Low temperature resistance and working low temperature limit of polytetrafluoroethylene products

Polytetrafluoroethylene is a material with excellent resistance to high and low temperatures. What is the true low temperature resistance of polytetrafluoroethylene products? We usually see that the temperature resistance of polytetrafluoroethylene in the data is - 196 ℃~260 ℃. So can polytetrafluoroethylene really withstand low temperatures - 196 ℃? The answer is yes. However, severe embrittlement of polytetrafluoroethylene occurs when the temperature drops to - 196 ℃. However, actual PTFE materials may vary in hardness, strength, size, and deflection as the temperature decreases.

In general, polytetrafluoroethylene (PTFE) can withstand low temperatures of - 196 ℃. Therefore, considering its strength and high temperature expansion rate, its size may be shortened, or it may ignite and have an effect. For example, vacuum seals often exhibit softening, embrittlement, or group shape compression during use due to excessively low temperatures. However, because the cold shrinkage of PTFE products increases as the temperature decreases, We recommend a safe low temperature control within - 70 ℃ for use.