When the dust inside the spray booth coating solvent evaporation hampered by first coating the surface condenses into a gel film, will form a vapor pressure. When the dust spray booth coating vapor pressure reaches a certain limit, it is possible to break through the surface of the gel coating film volatilize out, the result will leave a small membrane pores, called "pinholes." So how do you solve this problem? To avoid these drawbacks, the heating temperature of heating the initial coating is not too high, generally controlled at 25 ℃ -30 ℃, after 5-10 minutes, so that the whole coating surface until most of the solvent volatilization ungelled out. Then gradually heated, so that rapid drying film. Coating drying temperature level, should be based on the performance of the coatings can be determined by post-test. Principle is necessary to improve the drying rate, but also to ensure quality dry. Paint room furniture should also establish appropriate management system. When the work is completed, should be prepared to clean up, always protect the interior clean, clear flammable substances. If the surface of the gel film has hardened, clean spray booth coating can not break through the steam to escape, they will put together a top surface of the gel film, bubble formation, the coating uneven, seriously affecting its decorative and adhesion. To avoid this problem, please carefully read the certain knowledge we mentioned above. Article Source: www.jstzyd.com