Solvent-based paints are architectural paints made with organic solvents as dispersion media. Although solvent-borne paints pose problems of environmental pollution, waste of energy, and high cost, solvent-based paints still have a certain range of application and have their own obvious advantages. First of all, from the perspective of performance comparison, solvent-based coatings still have a great advantage. There are too many types of paint on the market today. This will undoubtedly cause great interference to users. This article mainly deals with water-repellent coatings. Water-repellent coatings are mainly divided into two types of coatings: water-soluble coatings. And solvent-based coatings . What are the advantages of water-borne and solvent-based paints and what is the difference between the two? Let's go over the details for everyone.

Advantages of waterborne and solventborne coatings

1, the advantages of water-based paint

With less harmful odor, it is suitable for recoating or already in use; It can be cleaned with clean water and soap, it need not be combined with dangerous and flammable solvents, and it does not need to be cleaned with solvent after construction; fast dry, repaint quickly Therefore, it is particularly suitable for use in the areas already in use; water-soluble latex paint has a strong anti-ultraviolet, so it can still be safe in places exposed to sunlight. Alkyd paints and oil paints absorb solar radiation to quickly break the paint film; water-soluble emulsion paint films, especially white, sub-white and pink paint films, do not easily yellow over time; water-soluble latex paint breathability Well, a small amount of water vapor is allowed to pass through the paint film, so the possibility of air bubbles can be reduced. This is very important for painting mildly wet surfaces; water-soluble latex paint has better gloss, long color retention, it can keep the new surface; water-soluble emulsion paint film is good elasticity, can be with the substrate With the expansion and contraction changes, it is not easy to produce cracks and peeling.

2, the advantages of solvent-based coatings

Solvent-based paints do not require high brushing conditions and can be applied over a wide range of temperatures and humidity. Solvent-based paints have a large consistency and are less likely to flow. Solvent-based paints have good leveling properties, a smooth film, and less brush lines or blemishes. The solvent-based paint has strong surface permeability, especially for open-air wood, which can increase its adhesion and surface protection; on the smooth surface, the adhesion of oil paint is better; the solvent-based paint has a more brilliant and luster. The solvent-based paint film is harder.

  

What are the water-based coatings - water-soluble coatings

Water-soluble paints use water as a pigment solvent to disperse substances without adding any oiliness. Therefore, many water-soluble paints are not toxic to human body, so the environmental protection function is very strong and is favored by consumers. When water-soluble paint is used to brush the walls, it can bring a layer of protective film to the walls to form a protective wall. It is widely used in home-painting and is also very popular in water-based paints.

What are Waterborne Coatings - Water Dilutable Coatings

Water-reducible coatings are one of the types of water-based coatings. The main use of the tree juice mixture emulsion, emulsification, the formation of a water-reducible coating, this water-based coating is also environmentally friendly, many people do not hurt, if you want to use water-reducible coating to play the wall, add some directly before use Water, you can brush the walls after mixing, isn't it simple? The effect of this construction is fast, and the brushed walls are beautiful.

What are the water-based coatings - water-dispersible coatings

Water-dispersible coatings in waterborne coatings are also made using resins that form emulsions. It also has a very good reputation in the minds of consumers, and it is also a widely used water-based paint. It also contains some chemical substances, but the types of waterborne coatings introduced here are non-toxic, and will not produce unpleasant odors after use. They also have a variety of colors and a wide range of options.

  

The difference between water-based paints and solvent-based paints

1. Composition The main varieties of different waterborne coatings are latex paints. The latex paints are mainly composed of four parts: water, emulsion, pigments and various additives; while the solvent-based coatings consist of resins, pigments, fillers, solvents and Four kinds of additives are composed. It can be seen that the dispersion medium of the water-based coating is water. After the coating is applied, water and a small amount of additives are volatilized from the coating film, which has environmental protection, safety, and other properties; and the dispersion medium of the solvent-based coating is an organic solvent (commonly referred to as VOC). Most of the organic solvents evaporated in the coating are poisonous and harmful substances, which will not only harm the human body, but also cause pollution to the natural environment.

2. Physico-chemical properties In terms of the physical and chemical properties of the coating, some of the physical and chemical properties of the water-based coating are inferior to solvent-based coatings, such as chemical resistance, weather resistance, stain resistance, etc., so the service life of the water-based coating is not Solvent-based paint is long. However, waterborne coatings also have some high-end products: such as waterborne silicon-acrylic coatings, fluorocarbon coatings, etc., and the service life can also reach l0-l5 years.

3. Application Environment In the construction environment, water-based paint construction generally requires construction above 5°C. Solvent-based paints can also be constructed at O°C. Therefore, in the northern regions, solvent-based paints can be applied near the winter. For the requirements of the grass-roots level, the base layer water content of the water-based coating construction should be less than 10%, the base layer water content of the solvent-based coating construction should be less than 8%; the water-based coating has good air permeability, and the water vapor inside the base layer can diffuse outward; The solvent-based paint film is dense and dense. If the moisture content of the base layer is high, water vapor cannot evaporate from the coating film and it is easy to foam.

Editor's summary: The above is the difference between solvent-based coatings and water-based coatings. Coatings are also a source of haze. The solvent-based coating is a kind of architectural coating. It is widely used in construction applications, but water-based coatings are suitable for the family wall. The decoration of the surface, which is the scope of application of the two are different. For more information, please continue to follow our website.

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C Steel Purlin is composed of automatic processing C steel purlin molding machine molding. The C steel purlin molding machine can automatically complete the molding process of the C steel purlin according to the given size of the C steel. C steel purlin is formed by bending coil thin wall, light weight, high strength, excellent section properties, compared with traditional channel, the same strength can save 30% of the material.

 

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