Does whitewashing contain formaldehyde?

In people's daily lives, a house is a place where people live, especially the house that belongs to people themselves. When moving into a new house, most people will choose to decorate it. The most basic thing before decoration is to paint the walls white. Many people know that decorating a house will produce formaldehyde, a gas that is harmful to the human body. So, does whitewashing contain formaldehyde?

First, does whitewashing contain formaldehyde? Wall paint contains a small amount of formaldehyde, and newly painted walls need to be treated with formaldehyde. In order to improve the performance of coatings, some coatings contain formaldehyde (anti-fog agents, etc.), but the content is very small. Water-soluble coatings such as polyvinyl formal will contain formaldehyde in the production raw materials. If the formaldehyde is not completely reacted during production, the produced coating will contain more or less formaldehyde. Formaldehyde control method: After the walls are painted, open the windows for ventilation, and use a formaldehyde detector in the room. Wait until the value drops to a level that is harmless to the human body before moving in; plant more bonsai in the room to absorb formaldehyde in the air; add activated carbon. The adsorption capacity of activated carbon is much better than that of plants, and it can effectively absorb harmful gases such as formaldehyde and ammonia; the white powder used to paint the walls is also called latex paint. If the latex paint is produced by a regular manufacturer, it does not contain formaldehyde. Formaldehyde is usually hidden in the glue of panel furniture and fabric furniture.

Second, water-based paint contains formaldehyde, which is a kind of adhesive. It is widely used in construction, furniture manufacturing and daily life. These adhesives can volatilize a large amount of organic pollutants when used. The main types are: phenol, cresol, formaldehyde, acetaldehyde, styrene, ethylbenzene, acetone, diisocyanate, vinyl acetate, epichlorohydrin, etc. Latex paint mainly contains benzene, and the content of branded latex paint is much less. Furthermore, since latex paint is used on the wall surface, the benzene inside is easy to volatilize, so generally once the wall and paint are dry, the benzene content will not exceed the standard. The scientific name of water-based paint is actually water-based paint, which uses water as a diluent and does not contain organic solvents. It does not contain benzene, toluene, xylene, formaldehyde, free TDI or toxic heavy metals. It is non-toxic and has no irritating odor. It is harmless to the human body, does not pollute the environment, and has a plump paint film. This is also the reason why water paint is becoming more and more popular.

Does whitewashing contain formaldehyde? Generally speaking, there are two types of paints we use for whitewashing walls: putty powder and latex paint. The main components of putty powder are base material, filler, water and additives. It does not release formaldehyde itself. However, some areas use the backward and obsolete technology of adding glue when applying putty, which can easily lead to the hazard of formaldehyde exceeding the standard. For putty that is mixed with glue and applied, it is usually necessary to open windows for ventilation for at least one month before moving in. It is not recommended for everyone to use it. The pollutants released by latex paint are generally VOCs, or volatile organic compounds, among which benzene is the most common. Originally, formaldehyde, an aldehyde substance, was also a common VOC. However, since the country has banned the use of some adhesives with high formaldehyde emissions, latex paints now rarely have problems with formaldehyde exceeding the standard. Qualified latex paint is green and environmentally friendly, and the VOC it contains will evaporate quickly, so you can move in soon after opening the windows for ventilation. Generally speaking, it takes about a week to wait for the paint to dry and the VOCs to completely evaporate. After another week of thorough ventilation, the house can be occupied in about two weeks.