Coating knowledge: emulsion paint or spray

Core tip: latex paint is an essential decoration material in home decoration There are two ways to use latex paint: brushing and spraying However, many people have doubts about whether latex paint can be brushed or sprayed well Of course, the effect of different methods of use is not the same It's also the most concerned about whether latex paint can be brushed or sprayed well Let's talk about latex paint in the following section Do you want to paint or spray it? First, the smoothness of the wall painted with emulsion paint is not as good as that painted with emulsion paint Normally, there will be painting marks If the wall looks very smooth after painting, it is actually caused by too much water in the paint Lacquer plus Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Home of coatings: latex paint in home decoration It's an essential decoration material There are two ways to use latex paint: brushing and spraying However, many people have doubts about whether the latex paint is well brushed or well sprayed Of course, the effect of different methods of use is not the same It's also the most concerned about whether the latex paint is well brushed or well sprayed Here's how to tell you whether the latex paint is well brushed or well sprayed? 1、 Emulsion paint is applied, but for emulsion paint, the smoothness of the painted wall is not as good as that of spraying Normally, there will be painting marks If the painted wall looks very smooth, it is actually caused by too much water in the paint Too much water in the paint will reduce the adhesion of the paint and easily lead to paint dropping At the same time, too much water will reduce the content of the paint and the paint film on the surface is relatively thin, so the wall cannot be well protected, and the elasticity of the paint will be reduced, and it is difficult to cover the small cracks of the putty layer After finishing painting the wall surface, use your hands to touch the white powder You don't need to be nervous Most of the "powder" dropped is the dust on the wall surface In the process of construction, a lot of dust will slowly attach to the wall, and similar phenomenon of powder falling may occur after touching with hands Use a duster or clean towel to wipe off the dust If the quality of latex paint is relatively poor, the moisture content is too much, and the emulsion is less After a year or two of the paint, it may appear that the dust is removed with the towel, but even if it is painted, it will not be dropped by hand 2、 The principle of emulsion paint spraying is to pressurize the paint to obtain high pressure through a booster pump (generally a plunger pump), and release the pressure from a special nozzle to achieve the purpose of dispersion and atomization, and apply the paint on the coating at high speed As no compressed air is needed for coating atomization, it is called airless spraying This spraying technology was widely used in automobile, aircraft, engineering machinery, train, ship, container and other industries With the continuous development of architectural coatings, high pressure airless spraying technology is gradually applied in the construction industry, such as latex paint, oil paint, water paint, resin paint and so on It has been popularized abroad The advantages of emulsion paint spraying are as follows: 1 Excellent surface quality The coating sprayed on the wall forms a smooth and dense coating without brush marks, which is incomparable with brush and roll 2 High coating efficiency The spraying efficiency of single operation is up to 350-550 m2 / h, which is 10-16 times of that of manual brushing 3 Delay coating life High pressure airless spraying, which adopts high-pressure spray atomization, enables the paint particles to obtain powerful kinetic energy to penetrate into the wall pores, makes the paint film and the wall form a mechanical engagement, enhances the coating adhesion and prolongs the service life 4 The thickness of brush coating and roll coating is very uneven, generally 35-200 μ m, with low utilization However, the thickness of airless spray coating is uniform, about 35 microns, and the utilization rate is high 5 Corners and gaps can also be well painted Because paint spray does not contain air, paints can reach these parts easily 3、 The construction method of emulsion paint is very backward, generally using brush and roller construction As a result: (1) brush marks, depilation, uneven (2) The light emulsion wall becomes matte (3) The wall is heavily powdered Conclusion: the above is the related knowledge that Xiaobian provides to you today about whether latex paint is applied well or sprayed well You can refer to it in the future decoration operation, hoping to help you Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,