Paint is an important part of interior decoration. It is prone to some thorny problems, and people are helpless. In fact, as long as the cause of the problem is found, it is not difficult to have satisfactory results. The following are the problems that are easy to produce. Propose a solution that will make you feel comfortable in interior decoration.
Paint peeling: It may be that the surface is too smooth. If the original paint is lacquered or powdery (with untreated paint coating), the new paint will not stick to the surface. Or it may be wood decay or metal rust spots, but also peeling off due to poor paint quality. A small area of ​​paint peeling off, can be sanded with fine gauze, then put on putty, brush the primer, and then repaint. Large areas of peeling must be stripped of the paint and repainted.
The paint is foamed: firstly, the foam is broken. If there is water, it means that there is moisture infiltration under the paint layer or behind the sun. After the sun shines, the water evaporates into steam, which will make the patent leather foam. At this point, first remove the running paint with a hot air spray gun, let the wood dry naturally, then apply the primer, and finally repaint the entire repair surface. If there is no water in the bubble, it may be cracked in the wood grain, and there is a small amount of air inside. After the sun shines, the air expands and the patent leather bulges. In the face of this situation, first scrape off the foamed patent leather, then fill the crack with a resin filler, repaint, or do not use filler, directly apply microporous paint after scraping off the patent leather.
Cracks occur: This is often done by removing the paint with a chemical paint remover or a hot air spray gun and then repainting. If the fracture range is not large, the sanding block or wet and dry sandpaper can be used to wet the water, and the broken paint is ground. After the surface is smoothed, putty is applied, the primer is applied, and the paint is repainted.
Paint drooling: Paint is too thick at a time, which will cause runny. The paint can be dried and brushed with a brush. If the paint has begun to dry, wait until it is dry. Smooth the surface with a fine gauze paper, brush the surface clean, then wipe it with a damp cloth, then re-coat the outer layer. Be careful not to brush too thick.
Moldy discoloration: This problem occurs mostly on wet paint surfaces. When water vapor condenses on glass and metal surfaces, it often produces brown-black stains. At this point, the fungicide can be used to treat the moldy parts according to the instructions of the instructions. After the mold is killed, the surface is cleaned and then repainted.
Stains: There are many reasons for stains on the paint surface. For example, the water in the latex paint dissolves the material on the wall and rusts the paint surface, and the wall surface rubbed with steel wool produces rust spots. The dark pipe in the wall leaks stains and the like. To prevent stains, first apply a primer containing aluminum powder. If stains have appeared, remove the latex paint from the stains, brush the primer containing aluminum powder, and then repaint.
Lustering: The reason is that the primer is not applied, or the primer and the inner layer of paint are not dried, and the varnish is directly applied. As a result, the lacquer is absorbed by the wood and loses its luster. The bad paint is also a reason. Use old wet and dry sandpaper to rub off the old paint, brush off the dust, wipe the surface with a clean damp cloth, and then dry it again. It is important to note that painting in a very low temperature environment may also result in loss of gloss after the film has dried.
Wrinkle of the paint film: usually caused by brushing the paint a second time because the paint is not dry for the first time. At this time, the solvent in the undercoat affects the upper paint film and wrinkles it. In this case, the creped paint film can be removed by chemical mercury removal or heating to repaint. Remember, you must wait until the first time the paint is dry before you can go to the second time.
Rough surface: The newly painted surface is rough, usually because the paint brush used is not clean or contaminated by the surrounding environment. It is also possible that the paint is mixed with patent leather, which has not been precipitated or filtered before use, or has been dusty when the paint is not dry. To prevent this from happening, a clean paint brush and paint bucket must be used. Always use old filter paper or filter with clean nylon stockings before use.
In addition, the painted surface should be covered with a cover or cardboard when the paint is not dry to prevent dust. If the paint surface is rough, after it has dried out, smooth it with a dry and wet sandpaper, wipe it off, and then paint again. Pay special attention to the paint brush must be clean.
The paint does not dry: the interior is not well ventilated or the temperature is too low, the paint will dry slowly. At this time, all doors and windows can be opened to promote ventilation, or a heater can be placed indoors to increase the room temperature. If the problem still cannot be solved, the painted surface may be greasy. At this point, the chemical paint remover or heat can be used to remove the paint, and the surface is completely wiped and repainted.
Stick the bug on the surface: Try to remove the bug when the paint is dry, then gently apply a little paint to the surface. If the paint is dry, you need to wait for the paint film to harden before removing the bugs so that the surface will not be messed up.
The surface of the painted wood is dark and dark spots: it may be that the knot is not sealed before painting, and the sun is exposed to the sun, the knot is heated, and the resin is exuded from the wood towel. At this point, the paint can be scraped off with a spatula, and then polished to a wooden knot with a fine sandpaper, and the knot is sealed with a seal paint, and then repainted after drying.
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