Latex paint mainly contains benzene series, and the high-end brand's latex paint content is much less. At the same time, since the latex paint is used on the surface of the wall, the internal benzene is easily volatilized, so the high-end brand of latex paint is applied to the wall to dry out, and the benzene is not exceeded.
Do not believe that there is no benzene paint, paint is based on benzene series, just like formaldehyde must have formaldehyde, there is no real aldehyde-free glue, only low aldehyde glue, low to the human body is not affected The content is a high level of environmental protection.
The topcoats and primers of the common branded latex paints on the market are water-based, and the environmental indicators of water-based latex paints are much better than ordinary latex paints. The so-called water-based emulsion paint is simply a latex paint that can be diluted with water, a dispersion of synthetic resin solid particles in water and a mixture of pigment particles in water, so that the proportion of components containing benzene-based harmful substances in the latex paint is greatly reduced. , to be negligible.
The main hazardous substances in latex paints are soluble heavy metal content (free formaldehyde content) and volatile organic compounds (VOC).
Free formaldehyde means that in the process of producing latex paint, a small amount of formaldehyde does not participate in the reaction, and it becomes free formaldehyde.
The volatile organic compound refers to a compound having a boiling point of 50 ° C to 250 ° C as defined by the World Health Organization, a saturated vapor pressure of more than 133.32 kPa at room temperature, and a type of organic substance present in the form of steam in the air at normal temperature. If the content is too much in the paint, it will cause headache, nausea, vomiting, and weakness in the limbs in a short time; in severe cases, it will convulsion, coma, and memory loss.
In the newly issued “Code for Indoor Environmental Pollution Control of Civil Buildingsâ€, the content of volatile organic compounds in indoor air has become an important item for evaluating the indoor air quality of indoors. The content specified in this standard is Class I civil construction project: 0.5 mg/m3, Class II civil construction project: 0.6 mg/m3.
Formaldehyde is a colorless, irritating gas with strong odor. It can bind to protein itself. After inhaling high-concentration formaldehyde, it will cause severe irritation and edema of the respiratory tract, eye irritation, headache, and symptoms such as bronchial asthma.
Therefore, the choice of latex paint must pay special attention to its VOC content and formaldehyde content.
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