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    Home > Coatings News > Paints and Coatings Market > Paint knowledge | 12 common mistakes in latex paint purchase

    Paint knowledge | 12 common mistakes in latex paint purchase

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: latex paint is the common name of latex paint It has the advantages of soft color, hard paint film, fast drying speed and so on It is one of the main materials used by many families for wall decoration So what problems should be paid attention to when purchasing latex paint? Next, the decoration net will bring you some common information about several mistakes in latex paint selection Let's have a look There are several common misunderstandings in the selection of emulsion paint: 1 The smoother the finished wall is, the better the expert says: generally, two processes of roll coating and machine spraying are used in the construction of emulsion paint For the wall with spray coating, the smoother the surface is, the better, but not for roll coating Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: latex paint is the common name of latex paint, with the advantages of soft color, hard paint film, fast drying speed, etc., it is a wall decoration for many families One of the main materials, then, which problems should be paid attention to when purchasing latex paint? Next, the decoration net small weaving will bring you several common mistakes of latex paint purchase related information, let's have a look Common mistakes in choosing emulsion paint 1: the smoother the finished wall is, the better the expert says: roll coating and machine are generally used in emulsion paint construction Spray two kinds of technology, for the wall using spray construction, the smoother the surface is, the better, but not for roll coating Normally, there will be knurled marks If the wall after roll coating 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 Tips: for the emulsion paint wall surface treated by roll coating process, do not pursue the effect of very smooth surface It is recommended to use wool roll with medium and short hair for construction, so that the roll printing of the wall surface will look more meticulous, as long as the roll printing looks more uniform, it will meet the requirements Error 2: touch the white powder to explain the quality problem of the paint experts say: after finishing painting the wall, touch the white powder with your hands, you don't need to be nervous, most of the falling "powder" is dust on the wall 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 Tips: it is better to touch the emulsion paint by hand 24 hours after it is applied to the wall If the construction temperature is below 5 ℃, the time should be extended to one week Before buying latex paint, it's better to ask the merchants about the grade of latex paint In general, medium and high-grade paint won't lose powder, but the paint with lower grade has poor scratch resistance and is more likely to lose powder Error 3: the more times the dark latex paint is painted, the darker the color is According to experts, the experimental results show that even if the dark paint is painted more than ten times, the wall color will not become deeper Because of the low content of titanium dioxide and the weak coverage, dark paint needs more times than light paint in the construction process, and the thick film is more uniform Tips: it's OK to apply light paint twice, but it's better to apply dark paint more than four times Myth 4: light color latex paint can't cover dark color paint well experts say: no matter what color paint is used, it can cover dark color paint well (such as red, purple, etc.) But the covering power of dark paint is not strong, so it is better to use dark paint to cover dark paint than to use light paint to cover dark paint for several times Tips: cover dark paint with light color paint, one or two times more than normal Error 5: no water in the emulsion paint, roller will not roll away experts say: no water in any emulsion paint, roller can be brushed away, but the knurled mark left is large Because of the poor coverage of dark paint, if you add water when rolling, it is very easy to brush the wall, so dark paint is generally not watered For walls of the same area, the amount of roll painting with dark paint is at least twice that with light paint Tips: if you feel that the knurled mark on the wall surface is relatively large without water, you can spray it Myth 6: primer is not very useful, you can also say: as long as the wall is scraped with putty, you must brush the primer, even if the old wall is renovated, the parts scraped with putty must also brush the primer Because the putty used now is water-resistant putty, which is more alkaline The primer has the effect of alkali resistance If you do not brush the primer, the putty will return to alkali, and the wall will become flower Tips: less water shall be added to the primer, and the interval between the primer and the subsequent finishing coat shall not be too short (preferably not less than 24 hours), otherwise, the putty may return to alkali after the primer is applied Myth 7: the paint will fall down when it is applied for many times Experts say: the experimental results show that the latex paint with good quality will not fall down even if it is applied for 10 times or 20 times Paint dropping is usually caused by damp and loose putty In this case, even one or two coats of paint will drop Tips: common walls can be painted with one primer and two finishing coats, while dark paint can be painted several times Myth 8: the thickness of the spray film is thinner than that of the roll coating Experts say: the thickness of the paint film depends on the number of times of construction and the amount of water added, which is not directly related to the way of spray or roll coating Tips: at present, paint spraying is divided into air spraying and high-pressure airless spraying Under the same spraying times, the paint film of air spraying is thinner than that of roll coating, while that of high-pressure airless spraying is thicker than that of brush coating Myth 9: the more expensive the emulsion paint is, the better the effect is According to experts, whether the wall effect is good after the construction of the emulsion paint is affected by both the quality of the emulsion paint itself and the construction technology "Good horse" also needs to be equipped with "good saddle", so as to give full play to its maximum effect The higher the grade, the higher the content of paint, emulsion and other raw materials, the higher the requirements for the construction process If the construction process does not pay attention, it is more prone to the phenomenon of wall brushes Tips: before construction, it is required that the construction personnel carry out the construction in strict accordance with the construction requirements in the product description, especially pay attention to the three requirements of water quantity, base treatment and interval time indicated in the product description Myth 10: the difference between the visual effect and the color card is the opinion of the manufacturer's color adjustment experts: at present, the color matching of latex paint is computer color matching, and the possibility of error is very small The color we see on the color card is usually different from the actual color after the emulsion paint is applied to the wall After the four walls of the room are painted, the color of the wall paint will look darker than that on the color card due to the reflection of light and other reasons Tips: if you don't like dark walls, you'd better choose a lighter color number when choosing colors in the color card If you like dark walls, you can adjust it to the same color as the selected color card Myth 11: qualified latex paint is the expert statement of environmental protection: it is not the same national standard to judge whether the latex paint is qualified and whether it is environmental protection Only the latex paint that has passed the national green ten ring certification is the real environmental protection product Tips: only latex paint products that have passed the green ten ring certification will have corresponding labels on their surfaces, and consumers can check whether they have such labels when they buy them At the same time, you can also ask the merchants for the test report presented by the National Paint Quality Supervision and inspection center, and check the VOC (volatile organic compounds) and other indicators The lower the value is, the more safe and environmental protection products are China's environmental mark certification standard requires that the VOC content of wall paint after water removal should be ≤ 80g / L Myth 12: high scrubbing times index the wall can be scrubbed at will with towel experts say: the scrubbing times of latex paint are tested by wiping on the paint surface with a special machine brush, rather than the results of testing with towel, a material tool If the towel is rubbed as hard as clothes, the paint film may be scratched, and even the latex paint with a high number of scrubbing resistance may also be powdered Tips: if there is a stain on the wall, wipe it off in time with a wet towel with normal strength The paint with poor quality may penetrate after too long, so it is not easy to remove The above is a small series of latex paint for you to buy common mistakes of several related knowledge, I hope 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,
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