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There are more and more varieties of coatings on the market, what kind of paints are available, water-based coatings are more environmentally friendly, there is no volatility, and it is more suitable for owners with higher environmental requirements.
Water-based coatings refer to any coatings that use water as a solvent or as a dispersion medium, which can be called water-based coatings.
There are three types of water-based coatings: water-soluble paints, water-dilution paints, and water-dispersible paints (latex coatings).
Water-soluble coatings are water-soluble resins as film-formers, represented by polyvinyl alcohol and its various modifiers, in addition to water-soluble alkyd resins, water-soluble epoxy resins and inorganic polymer water-based resins.
Characteristics of water-based coatings: use water as a thinner, do not pollute the environment, safe and non-toxic, and have no fire danger.
The construction is convenient, it can be brushed, roller coated, sprayed, and the construction tools can be cleaned with water.
The coating film dries quickly, and the water volatilizes cleanly to form the film.
Paint twice a day, and when the climate is suitable, the construction of the project can be completed in 1 day.
It has a certain air permeability, and has good water resistance, scrub resistance, and good gloss and color retention performance after the coating film is cured.
There are different textures of decoration effect, easy maintenance.
Water-based paint is higher than the general price, is a high-grade decoration coating.
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Coatings that use water as solvents or as dispersion media are called water-based coatings, which are relatively healthy and environmentally friendly coatings.
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Water-based coatings on the market can generally be divided into three types, water-dispersible coatings, water-dilution coatings, and water-soluble coatings. Water-dispersible coatings refer to the coatings configured with synthetic resin emulsion as the film-forming coating, which is the latex paint commonly used by people; The so-called post-emulsion emulsion is to dissolve the solvent-based resin in the organic solvent, and with the help of the emulsifier, the resin is dispersed in water to form an emulsion with strong mechanical stirring, and the material can be diluted with water during use; Water-soluble paints refer to coatings that form films with water-soluble resins.
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Water-based paints. It is divided into the following three categories:
First, it is made of acrylic.
As the main component of water-based wood paint, the main characteristics are good adhesion, will not deepen the color of wood, but the wear resistance and chemical resistance are poor, the hardness of the paint film is soft, the pencil test is HB, the fullness is poor, the comprehensive performance is average, and the construction is prone to defects. Because of its low cost and low technical content, it is most water-based paint.
The main products that the company brings to the market. This is also the reason why most people think that water-based paint is bad. The advantage is that it is cheaper.
Second, it is made of acrylic acid and polyurethane.
The composition is the main component of water-based wood paint, which is characterized by acrylic paint in addition to the characteristics of acrylic paint, but also adds the characteristics of wear resistance and strong chemical resistance, and some companies are marked as water-based polyester paint. The hardness of the paint film is good, the pencil rule test is 1h, the fullness is good, and the comprehensive performance is close to that of oil-based paint. At present, there are only a few enterprises in China that can produce.
Third, it is polyurethane water-based paint, its comprehensive performance is superior, the fullness is high, the hardness of the paint film can be reached, the wear resistance even exceeds the oil-based paint, the service life, color allocation has obvious advantages, for the water-based paint in the advanced products, the technology in the world only a few professional companies mastered.
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There are three types of paints: water-soluble paints, water-diluble paints, and water-dispersible paints (latex coatings).
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1. Water-soluble coatings. This type of water-based paint contains other types of resin raw materials, such as water-capacitive resins, which can form a film to protect the walls after being applied to the wall. The emergence of water-based paint is called the "third paint revolution" in the industry because of its invincible environmental performance.
2. Water-dilution coatings. It mainly contains emulsified emulsion to dissolve the resin, and water is directly added to dilute it during construction to achieve the effect of construction. Judging from the current situation of change in the global coating industry, European and American countries have begun to enforce the use of water-based paint, and China's pace towards water-based paint will also accelerate, and the future development direction of paint will be water-based paint.
3. The main principle of water-dispersible coatings is to form emulsions based on synthetic resins, that is, latex coatings.
It is a new multi-functional waterproof coating, which has the three functions of waterproofing, sand fixing and bonding, which can successfully solve the problem of cumbersome construction brought by the traditional two-component, and can also solve the problem that a single component can not be directly tiled, and at the same time can also solve the incompatibility between polyurethane waterproof and cement, and can solve the cost of waterproof reuse material construction in the toilet at one time. It is a real new composite functional waterproof coating.
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First, in the field of mild and moderate anti-corrosion, such as the field of anti-corrosion coatings for buildings and steel structures, it is still difficult to develop in the field of heavy anti-corrosion due to technical conditions; The second is the field of furniture coatings (wood coatings), at present, the water-based rate of furniture coatings in China is only about 5%, but water-based coating products show rapid technological development and rapid growth in downstream market demand, and the later development space is huge; The third is the field of automotive coatings, at present, in China's automotive coatings, the primer has been all waterborne, the water-based rate of topcoat has reached about 50%, although the water-based rate of automotive repair coatings is not high, but by a number of key areas represented by Beijing for the requirements of environmental governance of the auto repair industry, and key enterprises have water-based automotive repair coatings technical reserves, the field will also show a rapid growth trend. In addition, the development of water-based container coatings and construction machinery coatings also has great potential.
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