Material selection of coatings | detailed analysis of the difference between water-based coatings and solvent based coatings

Core tip: with the continuous progress of industrial technology, a variety of new materials are springing up in our lives As the two most commonly used coatings in architecture, water-based coatings and solvent-based coatings are often used for performance comparison So, what's the difference between the two coatings? Let's learn more about them later What is water-based coating? Water-based coating can be used as solvent or dispersion medium The main varieties of waterborne coatings are latex paints Latex paint is mainly composed of four parts: water, emulsion, pigments and fillers and various auxiliaries The water-based coating does not add any oily materials, including materials Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: with the continuous progress of industrial technology, a variety of new materials are springing up in our lives As the two most commonly used coatings in architecture, water-based coatings and solvent-based coatings are often used for performance comparison So, what's the difference between the two coatings? Let's learn more about them later What is water-based coating? Water-based coating can be used as solvent or dispersion medium The main varieties of waterborne coatings are latex paints Latex paint is mainly composed of four parts: water, emulsion, pigments and fillers and various auxiliaries The water-based coating does not add any oily materials, and the materials contained are harmless to human body The water-based coating includes water-soluble coating, water dilution coating and water dispersion coating What is solvent based coating? Solvent based coating is a kind of building coating made with organic solvent as dispersion medium It is mainly composed of resin, pigment, filler, solvent and various additives Paint solvent mainly includes hydrocarbon solvent, oxygenated solvent and water solvent The difference between water-based coating and solvent based coating is as follows: 1 In terms of composition and environmental protection, 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 is environmentally friendly, non-toxic and safe; The dispersing medium of solvent based coating is organic solvent, which is called VOC for short Most of the organic solvents volatilized from the coating belong to toxic substances, which will not only harm human health, but also cause environmental pollution 2、 From the physical and chemical properties of the coating, the water-based coating is inferior to the solvent based coating in chemical resistance, weather resistance, pollution resistance and wear resistance, and its service life is not as long as the solvent based coating However, there are also some high-grade water-based coatings, such as water-based silicon acrylic coating, fluorocarbon coating, etc., with a service life of 10-15 years 3、 According to 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 the water-based coating is good, the water vapor inside the base will diffuse outwards, and the solvent based coating will form a very dense film If the moisture content of the base is high, the water vapor will not be volatilized from the film and cause foaming 4、 From the perspective of construction environment, the ambient temperature of water-based coating construction is generally above 5 ℃, while solvent based coating can also be constructed at 0 ℃ 5、 From the perspective of application scope, solvent-based paint is a kind of architectural paint, mainly used for the painting of building exterior walls, while water-based paint is mainly used for the decoration of family walls The difference of application scope is mainly determined by their safety performance The safety performance of solvent-based paint is lower than that of water-based paint, while the safety performance of water-based paint is high 6、 From the perspective of film quality, the fullness of water-based coatings can not generally meet the places with high decorative requirements, and high gloss coatings are mostly realized by solvent based coatings The difference between water-based coating and solvent based coating is introduced here When choosing coating, each decoration owner must consider the comprehensive construction environment and various performance indexes, and select appropriate coating according to local conditions 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,