Coating knowledge: definition and selection of environmental protection coating

Core tip: with the improvement of people's awareness of environmental protection, environmental protection coatings are more and more popular What kind of environmental protection coating is better? First of all, let's understand how to define environmental protection coating The first is the total organic volatile (VOC) content of coatings: the organic volatile has a direct impact on our own, environment and society The VOC content of real environmental protection coating is very low, close to 0, even equal to 0 The second is the toxicity of solvents: that is, the solvents that can cause disease after contact or inhalation Toxic solvents cause direct harm to production and paint unions On the one hand, the solvent is Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Home of coatings news: with the improvement of people's awareness of environmental protection, environmental protection coatings are more and more popular What kind of environmental protection coating is better? First of all, let's understand how to define environmental protection coating The first is the total organic volatile (VOC) content of coatings: the organic volatile has a direct impact on our own, environment and society The VOC content of real environmental protection coating is very low, close to 0, even equal to 0 The second is the toxicity of solvents: that is, the solvents that can cause disease after contact or inhalation Toxic solvents cause direct harm to production and paint unions Environmental protection coating, on the one hand, the solvent is environmental protection, will control harmful substances in the harmless range; on the other hand, the use of water-based paint The third level is heavy metal, free formaldehyde and other harmful substances, such as environmental protection coatings, free formaldehyde, lead, chromium, mercury and other heavy metal ions are not available, which is a higher level of environmental protection coatings The fourth level is the user's safety problem: Generally speaking, after the paint is completely dry, its solvent basically volatilizes, but this needs a process, especially for the room temperature curing paint, some solvents volatilize very slowly, although the amount of these solvents is not large, but due to the user's long-term contact, if the solvent is toxic, it will also cause harm to human health, so when preparing it Be sure to limit the use of toxic solvents The basic requirements of national standards for environmental protection coatings are as follows: TVOC value shall not be higher than 100g / L, benzene and benzene series value shall not be higher than 500mg / kg, free formaldehyde value shall not be higher than 100mg / kg, mercury value shall not be higher than 60mg / kg, lead value shall not be higher than 90mg / kg, cadmium value shall not be higher than 75mg / kg and chromium value shall not be higher than 60mg / kg TVOC, benzene and benzene series, free formaldehyde, heavy metal mercury, lead, cadmium, chromium and other interior wall coatings meeting national standards are considered as environmental protection coatings However, the environmental protection performance of the interior wall coating meeting the European and American standards is better In addition, environmental protection coating also involves many indicators, such as: no or little irritant smell, more than 5000 times of scrub resistance, water and moisture resistance, etc How to choose environmental protection coating? 1 We should pay more attention to the quality and not only the price 2 Be sure to purchase products with product quality certificate and environmental protection mark, and require the production or sales unit to issue product quality inspection report 3 Purchase regular manufacturers, with quality assurance brand coating 4 Pay attention to the production date when purchasing, and confirm that it is within the warranty period [focus on WeChat official account "paint net"; pay attention to surprises, scan code to see if your husband is selling paint.. "Paint group: 92525666] coatings house is focused on coatings, diatom mud, paint and coatings, coating technology, fire retardant coatings news information and coatings, diatom mud, paint and coating, coating technology, fire retardant coatings decoration knowledge and decoration effect map.