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    Home > Coatings News > Paints and Coatings Market > Coating knowledge: how to select polyurethane waterproof coating carefully in home decoration

    Coating knowledge: how to select polyurethane waterproof coating carefully in home decoration

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: polyurethane waterproof coating is a one-component polyurethane waterproof coating which is made from isocyanate, polyether and other prepolymer containing isocyanate group by addition polymerization, with catalyst, anhydrous assistant, anhydrous filler, solvent, etc and processed by mixing and other processes At present, there are a variety of waterproof materials on the market, including domestic, imported and joint venture; there are high-grade, medium-grade and low-grade The common waterproof materials for home decoration are petroleum asphalt polyurethane waterproof coating, environmental protection polyurethane waterproof coating and polymer cement waterproof coating Polyurethane waterproof coating has been widely used in waterproof engineering because of its excellent physical and chemical properties among 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: polyurethane waterproof coating is a one-component polyurethane waterproof coating material, which is made of isocyanate, polyether and other prepolymer containing isocyanate group through addition polymerization reaction, with catalyst, anhydrous auxiliary agent, anhydrous filler, solvent, etc processed by mixing and other processes At present, there are a variety of waterproof materials on the market, including domestic, imported and joint venture; there are high-grade, medium-grade and low-grade The common waterproof materials for home decoration are petroleum asphalt polyurethane waterproof coating, environmental protection polyurethane waterproof coating and polymer cement waterproof coating Polyurethane waterproof coating has been widely used in waterproof engineering because of its excellent physical and chemical properties Among them, tar polyurethane is the most widely used But with the development of society and the improvement of people's living standards, people begin to pay more attention to environmental protection and their own health There are a lot of aliphatic and aromatic compounds in coal tar, which have strong irritant odor Anthracene and naphthalene are harmful to human body People pay more and more attention to the pollution of tar polyurethane to the environment In 1997, Beijing Municipal Commission of construction proposed to develop environmental friendly polyurethane waterproof coating for production enterprises; at the end of 1998, it issued "on limiting and eliminating tar polyurethane waterproof coating" Beijing Municipal Construction Commission also encouraged the development and recommendation of six environmentally friendly polyurethane waterproof coatings; (1) one component polyurethane waterproof coating; (2) color polyurethane waterproof coating; (3) inorganic filler polyurethane waterproof coating; (4) water curing polyurethane waterproof coating; (5) petroleum asphalt based polyurethane waterproof coating; (6) petroleum resin based polyurethane waterproof coating; The first four kinds are not widely used in the market due to their high cost The latter two kinds have become the development direction of enterprises and have been applied in the market Now it is advocated to promote the non tar polyurethane waterproof coating, mainly based on the environmental protection requirements, the difference between tar and non tar polyurethane waterproof coating 1 Smell tar type: there is a serious irritant smell, and the film has a bad smell; non tar type: only slight smell or tasteless, and the film has no obvious smell 2 Coating combustion tar type: it has an irritant smell, produces thick black smoke and contains black floccules, and burns rapidly; non tar type: it has a loose smell or slight smell, produces a small amount of black smoke, burns slowly, and does not burn away from the fire source 3 Tar type of mixing method: the viscosity increases at the initial stage of mixing, i.e there is thickening phenomenon during mixing; non tar type: the viscosity is basically unchanged without thickening phenomenon during mixing The above three methods can be used to judge qualitatively the tar type and non tar type polyurethane waterproof coating, so as to prevent the tar type polyurethane coating from passing off the non tar type into the market The move among force and soft and waterproof is the property of polymer waterproofing coating (JS coating), which is made of acrylate polymer emulsion and cement and other additives It has the characteristics of "hardness and softness" It has the advantages of polymer coating, such as elongation, waterproof, and strength of hydraulic cement, and is easy to wet This kind of coating uses water as dispersant, which solves the environmental pollution and the harm to human health caused by the use of tar, asphalt and other solvent based waterproof coating 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,
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