A class of pigment that can prevent or slow down corrosion of metals. anticorrosive pigment can prevent metal surface from rusting only after it is prepared into anti rust primer. The functions of anticorrosive pigment can be divided into two categories: physical antirust and chemical antirust. The physical anticorrosive pigment is used to fill the film structure with its fine particles, improve the film density, play a shielding role, reduce the permeability of the film, and thus play an antirust role, such as oxidized iron red, aluminum powder, glass flakes, etc; Chemical anticorrosive pigment can be divided into two types: corrosion inhibition and electrochemical action.
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