General knowledge of paint: characteristics and application of latex paint

It is suggested that the main harmful substances in latex paint are the content of volatile organic compounds and free formaldehyde Among them, "volatile organic compounds" is generally referred to as VOC (volatile organic compounds) Excessive VOC will stimulate human skin and eyes, damage nervous, hematopoietic and other systems, and seriously harm human health The VOC content of latex paint is limited in the limit of harmful substances of interior decoration materials in China Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Paint Home News: the harmful substances in latex paint are mainly "volatile organic compounds" and "free formaldehyde" content Among them, "volatile organic compounds" is generally referred to as VOC (volatile organic compounds) Excessive VOC will stimulate human skin and eyes, damage nervous, hematopoietic and other systems, and seriously harm human health The VOC content of latex paint is limited in the limit of harmful substances in interior decoration materials in China, and the VOC standard is 200g / L In the current coating production process, film-forming additives and antifreeze are the main sources of VOC in the coating Limited by the current raw materials and paint production level, to ensure and improve the coating film performance, it is necessary to add organic solvents (the main source of VOC) into the coating The addition of organic solvent increases the VOC content of the coating and reduces the environmental protection of the coating If the content of organic solvent is simply reduced, although the environmental protection performance is enhanced, the coating properties as one of the important properties of the coating will be affected So some of them are latex paints with high price due to their strong covering power Many people mistakenly think that the more expensive they are, the better In fact, they may have more harmful substances Formaldehyde is an irritant gas with strong gas, and it is a kind of volatile organic compound Formaldehyde was identified as a suspected carcinogen by the international agency for cancer research (IARC 1995) So formaldehyde content should also be focused on The main effects of formaldehyde on human health are stimulating eyes and respiratory tract, resulting in abnormal lung function, liver function and immune function Therefore, the choice of latex paint in addition to its scrub resistance or coverage must be concerned about its VOC and formaldehyde content Can latex paint really resist scrubbing? First of all, we need to understand what the scrub resistance of latex paint refers to In fact, it means using a scrub resistant instrument, using a specific brush, to repeatedly wet the latex paint plate prepared according to the standard for many times, and finally to see whether the paint film will be damaged It's like your clothes are stained with dirt I'll wipe them with a wet cloth Although I can't wipe the dirt off at all, your clothes haven't been scratched by me, which shows that your clothes are scrub resistant ——Not that your clothes are washable The film of emulsion paint can't be as smooth as glass, it's always micro granular, so once it's dirty, it's hard to wipe it off So, as far as the latex paint on the market is concerned, scrub resistance is only an adjective, and the latex paint wall is dirty, unless you can wipe it off with a cloth immediately, it is difficult to get it off Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,