-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
China Coatings network
News:
paint
paint
, almost all will be used in home decoration. One is that different colors of paint also make the whole room colorful. Second, paint paint it has anti-corrosion and waterproof function, can be to the wall or household items coated with a protective film. However, the use of paint paint when decoration will also produce a variety of problems, today small editor to take you together to take stock of the eight crimes of paint paint, and then provide you with solutions, do not be "paint" deception.
one possibility is that the surface is too smooth. If the original paint is light paint or powdery (plus untreated slurry paint), the new paint coating on the surface is not sticky. Or it could be wood decay or rust spots on the metal, or it could be peeled off due to poor paint quality.
solution: Small areas of paint paint peel off, you can first polish with fine sandpaper, then apply putty, paint primer, and then repaint. Large areas of peeling must be scraped off and repainted.
will puncture the bubble, a situation is water out, that is, the paint layer or behind the moisture seepage, after the sun, water evaporated into steam, will be the top of the paint into a bubble. The second situation is that there is no water in the bubble, it may be a cracked wood, there is a small amount of air, by the sun, air expansion, paint skin on the bulging.
solution: For the previous water situation, you can first use a hot air spray gun to remove the foaming paint paint, let the wood dry naturally, then paint the primer, and finally repaint the entire patch surface. For the latter waterless situation, first scrape off the foaming paint, and then fill the cracks with resin fillers, repaint, or do not use fillers, after scraping off the paint skin, directly coated with micro-hole paint.
cracks appear on the surface of the paint coating, mostly due to the use of incompatible paint coatings, the upper layer and the lower paint expansion coefficient is different.
solution: Most of these cases are removed with a chemical paint remover or a hot air spray gun and then repainted. If the fracture range is not large, then you can use sand scrubs or dry and wet sandpaper water, grind off the broken paint paint, after the surface is smooth, putty, paint the primer, and repaint.
are many reasons for staining the surface of the paint coating. For example:
latex paint
in the water melts the material on the wall and rusts out of the paint surface, with steel velvet rubbed the wall will produce rust spots, the wall of the dark pipe leakage appears stains and so on.
solution: To prevent stains, you can first brush a layer of aluminum-containing primer, if the stain has appeared, you can first remove the stain on the latex paint, brush the layer of aluminum-containing primer, and then repaint.
is usually caused by brushing the first time the paint is not dry or the second time. At this time, the solvent in the lower paint will affect the upper paint film, making it wrinkled.
: This condition can be removed by chemical demerizer or heating method to remove the wrinkled paint film and repaint. Remember, you have to wait until the first paint is dry before you can go on the second time.
newly painted surface is rough, usually the paint brush used is not clean or by the surrounding environmental pollution. It is also possible that paint coatings are mixed with paint skins that are not precipitated and filtered before use, or that paint coatings are dusted when they are not dry.
: To prevent these problems, clean paint brushes and buckets must be used. Before using old paint, be sure to filter it with paint paper or clean nylon stockings. In addition, the painted surface should be covered with a cover or cardboard when the paint paint is not dry to prevent dust. If the paint is brown, after it 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.