Myth # 1: The finished wall looks smoother and better
Experts say: latex paint construction will generally use roller coating and machine spray two processes, for the use of spray painting wall, the surface is really smooth as possible, but for roller coating is not, normally will stay There is a knurled print, if the wall surface after the roller 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 it will be easy to cause the paint to fall off. At the same time, too much water will reduce the paint content, and the surface paint film will be too thin to protect the wall surface and reduce the elasticity of the paint. It is difficult to cover the small cracks in the putty layer.
Special reminder: For the latex paint wall surface treated with the roller coating process, do not pursue the effect of very smooth surface, it is recommended to use medium-short wool fleece construction, so that the knurled surface of the wall looks more detailed, as long as the knurled India looks more uniform is to meet the requirements.
Myth #2: Hand paint with white paint has quality problems
Experts say: After finishing brushing the wall of the paint and touching it with white powder, you don't need to be nervous. Most of the “powders†falling off are dust on the wall. During the construction process, a lot of dust will slowly adhere to the wall surface. After the hand is touched, a similar powder fall-off phenomenon may occur. Wipe the dust off with tweezers or a clean towel, which should be resolved. If the quality of latex paint is poor, it contains too much water and less lotion, and the wall may appear to rub off with a towel after one or two years of painting. However, even if it is such a paint, it should be done by hand. Touch will not fall powder.
Special reminder: Latex paint is best to touch after 24 hours on the wall. If the construction temperature is below 5°C, this time will be extended to one week. Before buying latex paint, it is best to ask merchants about the grade of latex paint. In general, high-grade paint will not fall out of powder. However, the paint with lower grade is less resistant to rubbing and is more prone to powder fall-off.
Myth #3: The darker emulsion paints the more colors the darker
Experts say: Experimental results show that even if the dark paint is painted more than a dozen times, the wall color will not become deeper. Dark paint Because of the low content of titanium dioxide, the covering power is not strong. In the construction process, it needs to pass more than the light-color paint, and the paint film is relatively uniform.
Special reminder: light-colored paint can be applied twice, but dark paint is best to be coated more than four times.
Myth 4: Light-colored latex paint does not cover dark paint very well
Experts say: No matter what color paint is used, it can cover dark paint (such as red, purple, etc.) well. However, dark paint does not have a strong covering power, so dark paints are used to cover dark paints more often than light paints to cover dark paints.
Special reminder: Cover dark paint with light paint, one or two times more than normal paint.
Myth 5: No water in latex paint, the roller will not open
Experts say: Any latex paint does not add water, but it can be brushed with a roller, but the knurled print is larger. Dark paint because of poor coverage, if you add water when brushing, it is very easy to brush the wall, so the dark paint is generally no water. On the same wall area, use a dark paint to brush at least twice as much as light paint.
Special reminder: If you feel that the knurled seal on the wall without water rolling out is relatively large, you can use the spraying method.
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Misunderstanding 6: The primer is not very useful.
Experts say: As long as it is scraped putty wall, you must brush the primer, even if the old wall renovation, scraping putty must also brush the primer. Because putty is now used are water-resistant putty, alkaline, primer with anti-alkaline effect, do not brush the primer will appear putty back phenomenon, the wall will become flowers.
Special reminder: Add less water to the primer, and the interval between the finish coats should not be too short (preferably not less than 24 hours). Otherwise, the primer may be returned to the alkali.
Myth #7: The number of paintings is too many, and the paint will be unable to stand still.
Experts say: The experimental results show that the quality of latex paint even if it is painted 10 times, 20 times will not fall down. The lacquer is usually caused by the loose moisture of the putty. In this case, even if the paint is applied twice, it will fall down.
Special reminder: ordinary wall brush again primer, paint can be two times, dark paint will need to brush a few times more.
Myth 8: Spray paint film is thinner than paint film
Experts say: The thickness of the paint film depends on the number of times of construction and how much water is added, and there is no direct connection with the method of spraying or roller coating.
Special reminder: At present, spray paint is divided into two methods: air spray and high-pressure airless spray. Under the same number of spray passes, the air spray paint film is thinner than the roll paint, and the high pressure airless spray paint film is better than the brush paint. thick.
Myth 9: The more expensive the latex paint, the better the brushing effect
Experts said: After the construction of latex paint wall effect is good, by the quality of latex paint itself and the construction process of dual impact, "good horse" also need to "good saddle" in order to maximize their effectiveness. The higher the level of paint, the higher the content of the emulsion and other raw materials, the higher the requirements for the construction process, if the construction process does not pay attention, in fact, more likely to appear on the wall brushing phenomenon.
Special reminder: Before the construction, the construction personnel must be required to strictly follow the construction requirements in the product description. In particular, attention should be paid to the three requirements for water addition, primary treatment, and interval time specified in the product description.
Myth 10: Inconsistent visual effects with color cards
Experts say: At present, the color matching of latex paints is based on computer color, and the possibility of errors is very small. The color we see on the color card is usually different from the actual color behind the latex paint on the wall. After the four walls of the room are painted, the color of the wall paint will look better than the color card because of light reflection and other reasons. Deep on.
Special reminder: If you don't like dark walls, when selecting colors in the color card, it is best to choose the color number that you like to have a slightly lighter color. If you like dark walls, you can adjust the color to the selected color card.
Myth 11: Qualified latex paint is environmentally friendly
Experts say: It is not the same national standard to judge whether or not the latex paint is qualified and whether or not the environment is used. Only the national green ten-ring certified latex paint is the truly environmentally friendly product.
Special reminder: Only the surface of latex paint products certified by Green Circle will be labeled accordingly. Consumers can check whether they have this label at the time of purchase. At the same time, you can also ask the merchant for inspection reports produced by the National Coatings Quality Supervision and Inspection Center to check VOC (volatile organic compounds) and other indicators. The lower the value, the safer and more environmentally friendly the products are. The VOC content of paint after water removal is ≤ 80 g/l.
Misunderstanding 12: Washing times index high wall can use towels to scrub
Experts say: The scrub time of latex paint is wiped out with a special machine brush on the paint surface, instead of being tested with a towel-like material tool. If you use a towel to rub like a dustpan, it may wipe off the paint film. Even latex paints with a high scrub resistance may be powdered off.
Special reminder: If there is a stain on the wall, use a wet towel to wipe off in a timely manner with normal strength. For too long, the poor quality paint may infiltrate, and it is not easy to remove.
The above is the little knowledge about “wall makeup†that Xiaobian shared. Did you understand? Did you ever enter the above misunderstanding? Hope that these little knowledge can help everyone get out of the wrong area! In addition, if you have other questions or small knowledge on the wall decoration, do not be shy, share it, we discuss together!
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