Coating process: coating problems - mildew

Core tip: after coating, when the coating is in hot and humid environment, mold spots can grow locally or completely on the surface of the coating film When the mold spots are serious, they can be more than 5mm or the whole surface is covered with mold filaments, which seriously affects the beauty of the environment The reasons for mold growth of coating film are as follows: (1) Due to the poor mildew resistance of the coating, the water-proof, damp proof and heat resistant properties of the coating film are poor or the corrosive medium such as water vapor infiltrates into the coating film (2) The coating film is in the environment of high temperature, high humidity, poor air flow and no light for a long time (3) Casein and soybean protein in water soluble coatings Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Coating home news: after coating, when the coating is in hot and humid environment, mold spots visible to the naked eye will grow locally or completely on the surface of the coating film In serious cases, the mold spots can be more than 5mm or the whole surface is covered with molds, which seriously affects the beauty of the environment The reasons for the mildew growth of the coating film are as follows: (1) the poor anti mildew performance of the coating makes the coating film have poor waterproof and anti Hygrothermal performance or water vapor and other corrosive media penetrate into the coating film (2) The coating film is in the environment of high temperature, high humidity, poor air flow and no light for a long time (3) Casein, soybean protein, alginic acid, starch, natural rubber, cellulose derivative, emulsifier or defoamer and other auxiliaries in water-soluble coatings provide conditions for the growth of microorganisms (4) In the process of coating production and construction, there are mould and dirt mixed and substrate treatment is not enough The methods of prevention and cure of mildew on coating film are as follows: (1) the coating with good mildew resistance should be selected, and the matching of coating should meet the process requirements (2) Prevent the paint from polluting the environment for a long time, and ensure the good ventilation performance of the house (3) Paint should be added as little or no substances to promote the growth of mold (4) Clean equipment shall be used in the process of paint making and coating to avoid mixing the rotten part with the good part and minimize the pollution of dust in the air To do a good job in the treatment of the base material, the wall should be coated with sealing paint and putty (5) For the film with mildew, if only a few mildew spots can be removed and repaired; if the mildew is serious, the moldy film shall be removed and repainted after surface treatment Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,