How to choose environmentally friendly latex paint
The picture and text are irrelevant, the picture comes from: Rouge Design
Nowadays, people are paying more and more attention to environmental protection. When it comes to the discoloration of formaldehyde, sometimes they don’t fully understand the key points. For example, wall treatment is one of them.
The structure of the wall is basically like this from the inside to the outside: brick → cement mortar → interface agent (wall solid or 801 glue is possible) → putty (2-3 times) → latex paint (or wallpaper, silicon Algae mud and other products), it is not latex paint that is most likely to cause problems and pollution here, but 801 glue and putty .
Whether it is 801 glue, or later interface agent and wall fixation, the function of this layer is to make the viscosity of the putty and the wall better, and at the same time play a role in moisture and alkali resistance . 801 glue is too much free formaldehyde. In fact, the Ministry of Housing and Urban-Rural Development has invented it and eliminated it 10 years ago. However, it is still used in the market. I don’t understand why, probably because it’s cheap. Small workshop production is profitable. Even food has people who dare to add toxic and harmful substances, let alone these decoration materials.
There is a lot of formaldehyde in glue, and I brushed a large bucket on my home wall, thinking about it, I was drunk. Interface agents or wall solids are generally more environmentally friendly than 801 glue. Choose well-known brands, at least much better than Sanwu products, such as Henkel Black & Decker or Meichao.
There are many putty powder + 801 glue that are prepared by hand. This reason has also been mentioned before. The price is low and the construction is convenient. I personally recommend that you use finished water-resistant putty , various physical properties, environmental indicators are better than manual adjustment, and also recommend using well-known brands. However, the construction and polishing of finished putty is more difficult, and it is more time-consuming and laborious than the former, so many masters are reluctant to do it (because the general salary is calculated according to the construction area, if it is done slowly, it means that the money earned per unit time is less ). In addition, the finished putty will be more alkaline. It is recommended to buy the primer with strong alkali resistance. Regarding this, there are not too many owners who understand. Even if they understand this principle, there are few owners who can strive to win, and there are few masters who are willing to be. Therefore, the decoration market still uses a large number of products with excessive formaldehyde.
Let's put it this way, if you use glue with a serious excess of formaldehyde, buying the most expensive latex paint is no good. In addition, in addition to environmental issues, many wall defects are also caused by improper construction of the putty layer, so the construction of the putty layer is very important.
Hey, the decoration is too tiring, you have to make yourself half an expert.
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