Polytetrafluoroethylene material has the smallest surface tension among solid materials, does not adhere to any substance, and has excellent resistance to high and low temperatures. Therefore, it is widely used in the manufacture of non-stick pans and other anti-sticking aspects. The anti-sticking process mainly includes two types: installing PTFE parts or sheets on the substrate, and shrinking the PTFE coating or varnished cloth compounded with glass on the substrate.
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