Disadvantages: pinholescause①The viscosity of the paint is too high and the stirring time is too long.②The coating is too thick and the solvent is difficult to volatilize.③The matching curing agent is not used or the curing dosage is too much, and …

Disadvantages: roughcause①The spraying distance is long, the air pressure is large, the spray gun caliber is small, the solvent has volatilized when the coating reaches the surface, and the coating can not level.②The coated surface is not cleaned up…

Disadvantages: biting the bottomcause①The bottom layer does not match the surface layer.② Apply the lower layer paint before the bottom layer is dry.③The viscosity of the paint is too thick.④The primer layer is too thick.Solution①Pay attention to…

Disadvantages: sandpaper patterncause① The sandpaper used for grinding is coarser.②The coating is dry and not polished thoroughly.③The amount of curing agent added is not enough.④The manual grinding scar is too deep.⑤Excessive addition of thinner…

Disadvantages: sticking backcause① Insufficient curing dosage of cross-linked coating.②The surface of the coated object is contaminated.③There is too much slow-drying agent in the paint, and the solvent volatilization is not complete.④The paint vi…

Disadvantages: uneven glosscause①Improper operation and uneven overlap of spray guns.②The spray gun is blocked and the oil and gas are uneven.③The construction technology is not good, and the guns are unevenly moved.④The paint quality is not high.…

Disadvantages: crackingcause① Too much drier, the surface layer dries too fast.②The surface coating has poor weather resistance.③The primer layer is too thick, and the surface layer is applied before it is dry.④ The paint is not matched, and the h…

Disadvantages: shrinkagecause①The environment of the coating line is polluted.②There are water, oil, various acids, alkalis and other impurities on the surface of the coating.③The primer is too smooth.④The workpiece to be coated or the temperature…

Disadvantages: exposedcause①The paint is not evenly stirred and the paint is not stirred.②The coating viscosity is low and the coating is too thin.③ Missing coating occurred during operation.④ There are more resins in the paint, less pigment conte…

Disadvantages: paint offcause① The surface of the coated object is not clean and contains other harmful substances.②The putty or bottom seal is too thick and not thoroughly polished.③After sanding the lower layer, the interval between layers is too…

Disadvantages: discoloration and yellowingcause① Use paint that is easy to fade.② Discoloration after high temperature drying.③Excessive addition of curing agent.④The paint film will decompose when exposed to direct sunlight.⑤Light-colored painti…

Disadvantages: wrinklescause①The coating construction viscosity is too large, and the coating is too thick.②The spray gun has too much oil and the distance is too close.③The amount of curing agent added is too small.④The bottom surface has differe…