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一、“三防”产品的防护要求“三防”是气候防护措施中的三个主要方面的习惯称呼,就是“防潮热”“防霉”“防盐雾”。所谓“四防”,就是在“三防”的基础上,加上地区性影响的防护,如冷、热、低气压、工业气体、日光照射、雨淋、虫蛀、沙尘,及运输影响等等。涂漆产品,在大气影响下、很易发生漆流、漆瘤、分布不均匀、以及漆刺、起泡、起皮、绉皮、开裂、剥落、变色、粉化和长霉等现象,这些病症,在气候良好的情况下,即20±5℃、相对湿度65±15%、压力750±30mm Hg 柱时还不显著,但在高温高湿或
I. Protection Requirements of “Three Defenses” Products The “Three Defenses” are the customary addresses in the three major aspects of climate protection measures. They are “anti-hot-hot”, “anti-mold” and “salt spray prevention.” The so-called “four defensive measures” are based on the “three defenses” and the protection of regional influences such as cold, heat and air pressure, industrial gases, sunlight, rain, moth-eaten, dust and transport and many more. Paint products, under the influence of the atmosphere, are prone to paint flow, paint curls, uneven distribution, and phenomena such as lacquer, blistering, peeling, crepe, cracking, peeling, discoloration, Illness, in the case of good weather, that is, 20 ± 5 ℃, relative humidity 65 ± 15%, pressure 750 ± 30mm Hg column is not significant, but in high temperature and humidity or