Surface treatment chosen in the chemical industry.

In fields where chemical substances are used, coatings aimed at enhancing corrosion resistance are required. Typical corrosion-resistant materials include rubber, glass, and graphite products, but each has its drawbacks. For example, rubber is weak against heat and solvent-based substances, glass linings are vulnerable to alkaline chemicals, thermal shock, and mechanical shock, while graphite products, although excellent in acid resistance, are concerned to be weak against strong oxidizing acids (such as fuming sulfuric acid). From this perspective, perfluorinated fluoropolymers have fewer disadvantages, and in terms of chemical resistance, fluoropolymer coatings/linings can be used in a versatile manner.