Heavy anti-corrosion paint coating process, the project quality often appear's common failing, such as coating the part, bite area produces a blister the reasons of this phenomenon is besmear face paint a short time after, face paint film will appear to be automatic inflation, shift, shrinkage, hair knits, area of the bubble, so that even ground floor paint film lost adhesion, the coating is bitten appear from phenomenon. Coating performance is the form a complete set, primers and coating don't match. In polarity solvent weak made of coating; with strong upper level with the coating of polar solvents. PVC windows Such as alkyd paint or grease in the upper and paint besmear lacquers; The resin containing rosin film with coal epoxy coating after; In the anti-corrosive paint coating alkyd paint; In the alkyd or add oil paint besmear oxidation rubber coating, polyurethane coating etc. Strong solvents to film the penetration and swelling make the film to bite on. Coating is not dry coating down a coating. If vinyl chloride CiQi or varnish not dry, add the second word with paint. In the coating surface paint or next coat, the strong diluent, will bottom coating swelling.
Prevention and control measures for anticorrosion paint to dry, according to the best the interval time execution, must reach the shortest coating intervals. In the winter construction, can be appropriately extended the interval time, ensure the bottom of reality and coating. For special kinds of coating, can use "wet touch the wet"aluminum windows of the coating process, after the first layer coating when not immediately add a layer coating, can improve the coating adhesion. In strict accordance with the paint coating instructions. The same general anticorrosion paints can be matched. Different kinds paint systems under the hard up the soft principle; The strong solvents such as primer coating, surface paint solvent with weak coatings. In the coating with rosin coal epoxy resin is not appropriate, if want to paint, must choose the polishing processing, painted with filter layer, dry reoccupy after and clean dishcloth cleared surface coarse particles, with sand paper burnish, then the coal epoxy coating. To happen "bite bottom" abuse of paint, not rise to protect and adornment effect. Should the shovel to bite a coating of the bottom. Filling besmear and improve supporting. Not to the dry primer, wait for dry after appearing again primer coating surface paint.
To prevent bite up, a the coating should be thinner, wait for dry thoroughly again after the second word paint coating, not a painting too thick, make internal solvent can't volatile, extend the drying time. Anticorrosive paint coating of chosen thinner cannot exceed 5% of the total amount coating, coating process varieties in to fixed, not on the bottom with weak polarity thinner, the coating to use strong polarity solvent, such as acetone, esters and high boiling point solvents and other aromatics.