The ability of the coating to resist the growth of mold is called mildew resistance. Under hot and humid conditions, mold will proliferate and produce organic acids. After invading the coating, it can cause pigment dissolution and paint base hydrolysis, resulting in spots and blisters on the coating surface, resulting in coating damage, peeling off and loss of decoration and protection. effect. The mildew resistance test of coatings is generally carried out with inorganic salt medium and the Petri dish method.

