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Paint is an essential part of the decoration process, more prone to some difficult problems, often make the decoration of the whites to be prevented.
In fact, as long as we find out the main points of the use of paint, find out the real cause of problems in the paint process, there will be happy results, the following is for the use of paint in the process of more easy to produce a few problems, one by one analysis, so that you can also be at ease with the operation.
must-see for newbies! 8 symptoms to be aware of during paint operation
First, peeling of paint during operation
The cause of peeling of paint may be due to the surface is too smooth
the
. If the original paint paint is light paint or powdery (i.e. untreated slurry paint), the newly coated paint will not stick to the surface. Or it could be wood decay or rusty metal surfaces, or it could fall off because of poor paint quality. If the paint is peeling off in a small area, polish it with fine sandpaper, apply putty, paint it with primer, and then repaint it. Avoid scraping off all the original paint and re-spraying if it is a large area of peeling.
2, in the process of use of paint foaming
First, to puncture the paint bubble, if the paint bubble water pops out, that is to say, the paint bubble layer under the moisture seepage, after the sun, the water evaporated into water vapor, the paint layer will be toped into a paint bubble. If this happens, remove the paint bubble layer with a hot air spray gun, let the substrate dry naturally, then spray the primer, and finally repaint the entire patch. If there is no water in the paint bubble, it may be the cracking of the substrate, there is a small amount of air, by the sun, air expansion, the paint layer on the drum. If this is the case, scrape off the foaming paint layer, then fill the cracks with resin fillers and repaint them.
, the paint layer surface of the stain,
paint layer surface has many reasons for staining. For example: with steel velvet rub the wall will produce rust spots, for the paint layer surface stains, you can first brush a layer of primer containing aluminum powder, if there are already stains, to remove stains, brush layer aluminum powder primer, and then repaint.
, cracks appear in the paint layer
if this is the case, most of the paint should be removed with a chemical depainter or hot air spray gun, and then repainted. If the paint layer fracture range is not large, then you can use sand scrubs or dry and wet sandpaper water, polish the broken paint layer, after the surface is smooth, apply putty, paint the primer, and repaint.
5. Paint loss of gloss
Paint loss of gloss may be due to the failure of primer, or primer and interior paint is not dried on the direct light paint, resulting in light paint by the substrate or other substances absorbed and paint loss of luster. If this is the case, you can use dry and wet sandpaper to grind off the old paint, brush to polish the dust, wipe the surface clean with a clean damper cloth, wait for the surface to dry through, and then repaint it. This time need to pay special attention to, if the temperature is very low environment brush paint, such as paint film dry, may also make the paint lose luster.
, paint surface rough
paint surface on the new brush is rough, usually the paint brush used is not clean or the cause of environmental pollution around. It is also likely that the paint is mixed with lacquer skin, before use without precipitation and filtration, it is likely that the paint is not dry when the surface is covered with dust. If this is the case, clean spray guns and paint buckets must be used. Old paint must be filtered with paint filter paper or a clean filter before use. In addition, the brushed surface should be covered with a hood or other mask to prevent dust when the paint is not dry. If the paint surface is brown, after the paint has dried through, smooth and cleaned with dry and wet sandpaper, then repaint the paint. Pay special attention to the paint brush must be clean.
, stick bugs to the paint surface
If the paint surface sticks to the bugs as soon as possible when the paint is not dry, remove the bugs, and then use a brush with a little paint to repair the surface. If the paint has started to dry out, wait longer for the paint film to harden completely and remove the bugs. Otherwise the paint surface will be easily scratched.
, paint surface is not dry
paint surface dare not because the indoor ventilation is not good or the temperature is too low, paint will dry slowly. At this time, you can open the doors and windows to increase air circulation, if there are conditions can be put in the room a ventilator. If not, you can see if the surface of the paint is not very greasy. If greasy, the surface can be thoroughly cleaned with chemical agents, and then repainted.
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