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Coating crusting and its consequences

2026-02-07View Original

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The phenomenon in which a film forms on the surface of a coating in a container due to oxidative polymerization. Coating crusting is mainly caused by oxidation and polymerization reactions that occur when the coating surface comes into contact with air, resulting in the curing of the surface layer and the formation of a crust. This phenomenon is common in oil-based paints, alkyd resins, and other coatings that dry through oxidation. The root causes can be categorized into three main types: solvent evaporation, component reactions, and improper storage conditions.

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