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Coatings are usually composed of film-forming substances, pigments and fillers, diluents and additives
(1) Film-forming substances
The film-forming substance is usually composed of resin or grease.
Its function is to make the coating form a continuous film firmly attached to the object to be coated, and it is the basic material that constitutes the coating film.
The basic physical and chemical properties of the coating film mainly depend on the film-forming material com" href="http://">coating online coatingol.
(2) Pigments and fillers
Pigments and fillers together with the main film-forming substances form the coating film.
Its main function is to color and improve coating performance, enhance coating protection, decoration, and rust prevention capabilities, while reducing coating costs.
(3) Thinners and additives
Diluents are divided into two categories: ordinary diluents and active diluents.
The reactive diluent directly participates in the film formation of the coating and becomes a part of the coating.
Ordinary thinners do not form the coating, but they also play an important role in the film forming process of the coating.