Symptoms and their causes: One-sided or total loss of adhesion between epoxy floor paint film and base or coating causes the dividend-sharing patches of the coating or the recovery of the surface. Causes: poor pre-processing quality of epoxy floor paint before painting, oral presence of oil stain, rust, wax grease, water and alkali materials on the floor are not removed and cleaned. Substrates are relatively slippery, the adhesion of base coatings and base coatings is not good, or the matching of base coatings and surface coatings is not suitable, and the integration between coatings is not good. Putty coatings are directly scraped on the surface without base coatings, or even though putty is scraped on the base coatings, after wet polishing, a layer of putty is coated without drying up, and water permeates into the putty layer.
The epoxy floor paint is pretreated before painting, staying too long, and the floor is verbally covered with dust impurities. Oral coating is applied on wet and mouldy wood and concrete. _The epoxy floor paint primer is extremely drying, or less than drying, and the coating is not dry, so it is simple and lonely to use in diffuse wet conditions.
Prevention and control: Before painting, the floor will be cleaned orally. The slippery mouth will be sandblasted, shot peening, phosphating or hand-polished with sand cloth, so that it can reach the required roughness and be easy to paint. The intermittent time of pre-processing to the floor painting construction usually does not preempt 4 hours. Select a good matching floor paint primer, topcoat and putty.
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