Latex paint seven misunderstandings, the original our views are mostly wrong!

Latex paint is relatively environmentally friendly. When transported and stored, there is no risk of explosion and fire. At the same time, there are Shigongfangbian, fast film drying, good air permeability, good water resistance, rich color and other advantages. One of the most common wall decoration materials. But there are seven common mistakes in latex paint, and if you are not careful, you will fall into the mistakes!

1. Does zero VOC make sense?

VOC is an important indicator of the Environmental Protection of paint. It is generally believed that the lower the better, there is no shortage of products that claim zero VOC on the market. In fact, it is not reliable. All paint coatings will contain VOC, but the content of the problem. In fact, as long as the standard is met, there is no need to pursue VOC content too much. Domestic mandatory standards require ≤ 120g/L, domestic environmental protection standards ≤ 50g/L, European environmental protection standards are higher, and blue angels require ≤ 0.7 g/kg.

2. No smell is environmental protection?

The paint with pungent odour must be inferior, then smell the products without special odour on behalf of environmental protection clearance? Of course not. The paint can be odorless by adding flavor or low-taste materials, and many harmful gases are already colorless and odorless, such as formaldehyde. Therefore, the odorless paint does not mean that it is environmentally friendly and non-toxic. The key is to look at the test report of the authoritative certificate and formaldehyde test data.

3. Goldfish live test, proof of latex paint environmental protection?

Goldfish to water quality requirements are very high, put latex paint into the water, so that goldfish swimming around inside, can prove that latex paint environmental protection? In order to prove that latex paint environmental protection, let people drink directly! It's a gimmick, but it's a concept! Food is safe and healthy, so according to this performance, many consumers will agree that the paint is environmentally friendly. However, it ignores the scientific logic. First of all, it is not dead to eat, or goldfish are not immediately dead in it. It can only mean that this thing is not highly toxic and will not immediately cause a strong reaction. It does not mean that this thing is environmentally friendly and harmless.

To determine whether latex paint is environmentally friendly, the most important one is VOC, which is organic volatiles such as formaldehyde and toluene. Because judging whether something has an impact on health, the first thing to see is whether it will enter our body. When VOC volatilizes into the air, it will inhale into the body with human respiration, which will have an impact on health. Of course, this process is not inhalation or death, but long-term exposure can affect health, such as inducing leukemia. So buy paint, the most important thing is to see the test report VOC content. If the family has children or pregnant women and other people with poor resistance, environmental protection standards need to be put higher.

4. The color card is the same as the brush color?

Many people will have the memory that the color is clearly selected, but the paint received does not seem to be the effect of their own choice, or it is not the perfect effect of their own expectations. There are many people with a case picture to choose the color, in fact, the picture may be beautified, and light, wall state, display will cause color difference. For example, the paint on the wall is in a liquid state, and after the paint is completely dry, the color displayed is different. The color difference problem that the basic level flatness can also cause, so when the putty is approved, the wall should be as flat as possible, but the wall paint is generally matte, if it is not very poor flatness, there is generally no color difference problem.

5. No primer = Save money and work?

When painting the wall, if the primer is not used well, the wall absorption will be too fast when painting, and the amount of latex paint is difficult to estimate; After painting, there are still risks such as paint film falling off, starting, mildew spots, so the primer effect can not be ignored. If there is no brush primer, the better the finish may also lead to discoloration, paint film falling off and other problems. Later repair is more time-consuming and laborious. So the primer walls are more durable and less costly.

6. Latex paint and wood paint with construction?

The wood paint product contains toluene diisocyanate(TDI). If the wood paint is constructed at the same time as the emulsion paint, these free-state TDI will react with the ingredients in the emulsion paint to make the wall painted with latex paint yellow. Therefore, wood paint and latex paint can not be constructed at the same time. It is recommended to brush the wood paint first and then brush the wall paint to prevent the composition in the wood paint from contaminating the wall.

7. The smoother the wall, the better?

Latex paint construction will generally use roll coating and machine spraying two processes, for the use of spray construction of the wall, the smoother the surface is, the better, but for the roll coating is not-normally will have a roll print, 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, easy to fall paint and other problems. Therefore, for the use of latex paint wall treatment, do not pursue a very smooth surface effect, it is recommended to use short and medium wool to roll construction, so that the wall of the rolling print will look more detailed, as long as the rolling print Looks more uniform is in line with the requirements.