Coating classification: blistering phenomenon of coating film

Core tip: the blistering phenomenon of paint film refers to the appearance of protuberant round bubbles with different sizes after the paint film dries, also known as blisters The main reasons for the foaming of paint film are as follows: ① The wood hole on the surface of wood is too deep, so it is difficult to fill After the paint film is sprayed, the gas from the blank expands outward to jack up the paint film, causing foaming; ② Use paint with high viscosity; ③ Too high pressure of spraying air, too much air mixed in the coating; ④ Too intense heating and drying; ⑤ The roof has high moisture content, too high ambient temperature, too high humidity and poor ventilation; ⑥ Air compressor and pipeline with Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: paint film blistering refers to the paint film dry after the emergence of different sizes of protuberant round bubbles, also known as blisters The main reasons for the blistering phenomenon of paint film are as follows: ① the wood hole on the wood surface is too deep, filling is difficult, after the paint film is sprayed, the gas from the blank expands outward to jack up the paint film, causing blistering; ② the paint with too high viscosity is used; ③ the pressure of spraying air is too high, and the paint is mixed with too much air; ④ the heating and drying is too intense; ⑤ Roof moisture content is high, environment temperature is too high, humidity is too high, ventilation is not good; ⑥ air compressor and pipeline have moisture; ⑦ curing agent is added into the paint and evenly mixed, placing time is not enough; ⑧ solvent volatilization is too fast when poor diluent with high moisture and alcohol is used for spraying; ⑨ one time coating is too thick or the interval between spraying layers is too long; solution: ① apply transparent putty To fully fill the wood hole, brush the gap and exhaust the air in the wood hole before spraying; ② to properly adjust the viscosity in the paint; ③ to adjust the appropriate air pressure to reduce the air mixing; ④ to heat and dry, wait for the solvent to volatilize; ⑤ to improve the construction environment, the surface should be dry, and the coated surface should be dried for more than 2-3 hours after water grinding; ⑥ Use oil-water separator to separate and drain water regularly, once every half a day; ⑦ after mixing, it should be kept for 5-10 minutes; ⑧ the matching diluent should be selected; ⑨ 5-10% slow drying solvent (such as CAC, cyclohexanone, etc.) can be added; ⑩ construction for many times, when coating for many times, the drying time should be extended to allow the lower layer to be filled and dried 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,