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    Home > Coatings News > Paints and Coatings Market > Common knowledge of coating: difference between water-based coating and solvent based coating

    Common knowledge of coating: difference between water-based coating and solvent based coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: there are two main types of coatings on the market, water-based coatings and solvent based coatings What is the difference between water-based coating and solvent based coating? First, in terms of composition and environmental protection: The main variety of water-based architectural coatings is emulsion paint Latex paint is mainly composed of four parts, such as water, emulsion, pigments and fillers and various auxiliaries The composition of solvent based coatings is composed of four parts: resin, pigments, fillers, solvents and various auxiliaries It can be seen from this that the dispersing medium of water-based coating is water After coating construction, water and less volatilize from the coating 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 Coatings home news: the main forms of coatings on the market are divided into two types, water-based coatings and solvent based coatings What's the difference between water-based coatings and solvent based coatings? First of all, from the perspective of composition and environmental protection, the main type of water-based building coatings is emulsion paint Latex paint is mainly composed of four parts, such as water, emulsion, pigments and fillers and various auxiliaries The composition of solvent based coatings is composed of four parts: resin, pigments, fillers, solvents and various auxiliaries It can be seen that: the dispersing medium of water-based coating is water After coating construction, water and a small amount of additives are volatilized from the coating, which has environmental protection, safety and other properties; The dispersing medium of solvent based coating is organic solvent (VOC) Most of the organic solvents volatilized from the coating are toxic and harmful substances, which not only harm the human body, but also pollute the natural environment In terms of physical and chemical properties of the coating, some physical and chemical properties of the water-based coating are inferior to those of the solvent based coating, such as chemical resistance, weather resistance, stain resistance, etc Therefore, the service life of waterborne coatings is not as long as that of solvent based coatings But there are also some high-grade products of water-based coatings, such as water-based silicon acrylic coating, fluorocarbon coating, etc., with a service life of about 10-15 years From the construction environment: in the construction environment, the construction of water-based coating is generally required to be more than 5 ℃, and the solvent based coating can also be constructed at O ℃ Therefore, in the northern region, the solvent based coating can be used for construction near winter In terms of the requirements for the base course, the moisture content of the base course for the construction of water-based coating shall be less than 10%, and that of the base course for the construction of solvent based coating shall be less than 8% The air permeability of water-based coating is better, and the water vapor inside the base can diffuse outwards; while the film-forming of solvent based coating is dense, if the moisture content of the base is high, the water vapor can not be volatilized from the film, and it is easy to bubble It can be seen from the above that waterborne coatings have more advantages in environmental protection than solvent based coatings, but in terms of physical properties and construction environment, waterborne coatings are inferior to solvent based coatings According to the current development trend of domestic coatings market, waterborne coatings have more advantages of long-term development and more in line with sustainable development 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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