Water spots, oil spots, shrinkage cavities, and crepe dews are affected by foreign matter (such as water, oil, wax, etc.) present in the surface of the coated object or mixed into the paint. The paint cannot be uniformly attached to produce a shrinkage to expose the coated surface or the coated film. The phenomenon of unevenness. Why are these morbidities prone to occur in summer?
1 In summer, the temperature is high, and the oil adhering to the substrate is not easy to remove. If the cleaning is not thorough, it is prone to water, oil, shrinkage, and scorpion.
2 In summer, the humidity is large, and a large amount of water and oil will be generated in the air compressor. If the water and oil in the air compressor and the gas storage tank are not cleaned in time, the paint will be polluted, resulting in water spots, oil spots, and shrinkage. Holes, lice and other pathological conditions.
3 The summer temperature is high, the solvent in the coating evaporates quickly, the surface tension of the coating changes rapidly, and the less obvious pollution can also cause obvious water spots, oil spots, shrinkage holes, scorpions and other pathological conditions.
4 The painting environment is not clean, and the overalls and gloves used for spraying may cause water spots, oil spots, shrinkage holes, and scorpions.
The prevention of these morbidities is mainly to clean the painting environment, the coating substrate, the painting equipment, etc., and to make the dehumidification ventilation of the spraying environment.