Question 1: What does water-based paint contain? Although there are many brands of water-based paint on the market, they can be divided into the following three categories based on their main ingredients:
Category 1 It is a water-based wood paint with acrylic as the main component. Its main features are good adhesion and will not deepen the color of the wood. However, it has poor wear resistance and chemical resistance. The hardness of the paint film is soft. The pencil rule test is HB and the fullness is relatively low. Poor, general performance is average, and construction defects are prone to occur. Because of its low cost and low technical content, it is the main product introduced to the market by most water-based paint companies. This is also the reason why most people think that water-based paint is not good. The advantage is that it is cheap.
The second category is water-based wood paint that is mainly composed of acrylic and polyurethane compositions. In addition to adhering to the characteristics of acrylic paint, it also has the characteristics of strong wear resistance and chemical resistance. Some paints have strong wear resistance and chemical resistance. The company label is water-based polyester paint. The hardness of the paint film is good, the pencil rule test is 1H, the fullness is good, and the overall performance is close to that of oil-based paint. At present, only a few domestic companies can produce it.
The third category is polyurethane water-based paint, which has superior comprehensive performance, high fullness, paint film hardness can reach 1.5-2H, wear resistance even exceeds oil-based paint, and has obvious improvements in service life and color matching. The advantage is that it is an advanced product in water-based paint. This technology is mastered by only a few professional companies in the world.
Although the types are clear, it is not easy to distinguish the water-based wood paints on the market. Because the names and ingredient labels of water-based paints are not uniform among manufacturers, it is easy for consumers to get confused. For example, water-based paints with acrylic acid as the main component have two standard methods: acrylic acid and polyurethane. It is best for consumers to help judge by smelling: acrylic has a slightly sour smell, while polyurethane has a light oily fragrance. Of course, the most reliable way is to purchase products produced by professional water-based paint manufacturers. Chenguang Paint seems to be doing a good job in this regard.
Question 2: What are the commonly used types of water-based coatings:
Coated on the surface of objects to obtain functional and decorative substances in design, including what people often say Paints and coatings.
Paint:
It is currently considered to be oil-based paint. The so-called oil-based paint is a paint that uses organic solvents such as xylene, butyl acetate, butanol, etc. as solvents. Generally, Has a pungent odor. This type of coating has lower construction environment (temperature) requirements than water-based coatings, has good leveling, and can achieve high gloss.
Water-based paint:
According to common sense, paint that can be diluted with water is water-based paint. This statement is correct or incorrect. From this statement, the first classification of water-based coatings is derived:
A. Divided according to water solubility:
Water-soluble water-based coatings Most coating film-forming resins are emulsions and can be dissolved in water in any proportion.
The film-forming resin of this kind of coating water-based coating is not an emulsion. It is insoluble in water or evenly dispersed in water. It is necessary to add cosolvents such as propylene glycol ether, propylene glycol methyl ether, n-butanol, etc. to disperse in water. , that is, this type of resin is dissolved (dispersed) in the aqueous solution of the above solvent, and will still emit a pungent smell during production and use. Strictly speaking, this type of paint cannot be considered a true water-based paint.
B. Water-based paints can be classified according to the properties of film-forming materials:
Water-based latex paint (for interior and exterior walls)
Water-based acrylic Polyurethane coating (water-based acrylic resin, generally used as weather-resistant, decorative topcoat)
Water-based epoxy coating (water-based epoxy resin, can be used as anti-corrosion primer)
Water-based Polyester coating (water-based polyester resin, can be used as wood paint)
Water-based amino coating (water-based amino resin, can be used as automotive paint)
Electrophoretic paint (water-based special emulsion resin , used as automotive primer)
Water-based inorganic coatings (the most common ones on the market are water-based inorganic zinc-rich primers and silicate resins)
Other water-based special coatings (such as Zhisheng Weihua High-temperature resistant coatings such as ZS-1021 have a maximum temperature resistance of up to 2300°C. Water-based special functional coatings such as anti-corrosion, anti-oxidation, heat insulation and thermal insulation are all in this category. Only water-based coatings can achieve a higher temperature resistance range ≥600°C) < /p>
C. Water-based coatings can also be classified according to their fields of use:
Water-based architectural coatings (latex paint for interior and exterior walls)
Water-based wood paint
< p> Water-based industrial paint3.1 Water-based anti-corrosion primer
3.2 Water-based mid-coat
3.3 Water-based topcoat
Water-based special coating ( See item 8 above)
Summary:
The classification of water-based coatings is the same as that of conventional coatings, except that the resin system changes to a water-based system, and the solvent (thinner) is changed from Organic solvents just change into water. However, since the development of water-based resins does not happen overnight and requires a process, according to the conventional coating classification, some categories are currently blank, such as water-based alkyd coatings.
With the global promotion of water-based coatings, laws and regulations in various countries have clear limits on VOC emissions. Therefore, policy pressure and social responsibility are driving the water-based revolution in the coatings industry. The research and development and application of water-based resins are also A great breakthrough has been made. The classification of water-based coatings is no longer empty. Real products that deserve the name will continue to supplement this classification. People will have more and more choices for healthy water-based coatings in their daily lives and work.
Question 3: What are the advantages and disadvantages of water-based coatings? Water-based paint is relatively environmentally friendly, so it is also popular in the market. But it also has many problems. Let’s take a look at its advantages and disadvantages.
Advantages: 1. Water-based coatings use water as the solvent, saving a lot of resources; water-based coatings eliminate the risk of fire during construction; reduce air pollution; water-based coatings only use a small amount of low-toxicity alcohol ether organic solvents , improving the working environment conditions. The organic solvent (accounting for paint) of general water-based coatings is between 10% and 15%, but the current cathodic electrophoretic coating has been reduced to less than 1.2%, which has a significant effect on reducing pollution and saving resources.
2. Water-based paint can be applied directly on wet surfaces and humid environments; water-based paint has good adaptability to the material surface and strong coating adhesion.
3. Water-based paint painting tools can be cleaned with water, which greatly reduces the consumption of cleaning solvents.
4. The electrophoretic coating of water-based paint is uniform and smooth.
It has good flattening properties; the inner cavity, welds, corners and edge parts can be coated with a certain thickness of coating, which has good protection; the electrophoretic coating has the best corrosion resistance, and the thick film cathodic electrophoretic coating The salt spray resistance can reach up to 1200h.
Question 4: What are the top ten brands of water-based coatings? 1. Dulux (a subsidiary of AkzoNobel Group, a Fortune 500 company, one of the top ten paint brands, AkzoNobel Swire Paints (Shanghai) Co., Ltd.)
2. Nippon Paint (well-known in China) Trademark, Japanese brand, one of the earliest paint companies, top ten paint brands, famous brands, Nippon Paint (China) Co., Ltd.)
3 China Resources Huarun (China Well-known Trademark, Chinese Famous Brand, National High-tech Technology enterprise, China Environmental Labeling Products, Top Ten Paint Brands, Guangdong China Resources Paint Co., Ltd.)
4. Carpoly (China Famous Trademark, Guangdong Province Famous Brand, Guangdong Province Famous Trademark, the largest private enterprise in China One of the paint manufacturers, Guangdong Jiabaoli Chemical Co., Ltd.)
5. Three Trees Skshu (China Famous Trademark, China Famous Brand, one of the largest ecological paint industry companies in China, one of the top ten paint brands , Fujian Sankeshu Paint Co., Ltd.)
6. Maydos (China Famous Trademark, Guangdong Province Famous Trademark, China Environmental Labeling Product, National High-tech Enterprise, Top Ten Paint Brands, Guangdong Maydos Tu Shi Chemical Group)
7. American DuPont Paint Doppon (Top Ten Paint Brands in the World, China Environmental Labeling Products, American DuPont Paint Industry (China) Co., Ltd.)
8. Dabao Lacquer Taiho (China's well-known trademark, Guangdong Province famous brand product, Guangdong Province famous trademark, China Environmental Labeling Product Certification, Dongguan Dabao Chemical Products Co., Ltd.)
9. Bauhinia (started in Hong Kong in 1982, Chinese famous brand, well-known brand in Shenzhen, large listed group company, top ten paint brands, Yip's Chemical Group Co., Ltd.)
10. ConocoPhillips Healthy Paint Coafo (top ten paint brands, famous trademarks, Chinese environment Logo product certification, Guangdong Shunde Conoco Chemical Co., Ltd.)
Question 5: What are the differences between water-based coatings and solvent-based coatings? Solvent-based coatings refer to solvents as the dispersion medium, compared with water-based coatings The performance is better, but the disadvantage is that it is not environmentally friendly and has poor air permeability when applied to buildings; water-based coatings use water as the dispersion medium, which is more environmentally friendly and easy to construct. Exterior wall paints can include solvent-based and water-based paints; interior wall paints generally refer to latex paints (water-based).
Question 6: What is the difference between water-based paint and general paint? Water-based paint is a paint based on water, which is environmentally friendly and has excellent performance. Although general paints also have good performance, the raw materials contain too many harmful substances. For home decoration, water-based paints are more suitable.
Question 7: What types of water-based coatings are there? Water-based coatings are generally divided into inorganic coatings and organic coatings. Organic coatings are latex paints.
Why is it called organic paint? The simple understanding is that it contains nutrients and is usually made of acrylic. The weakness of this kind of paint is that it is easy to get moldy, and its adhesion to the wall can only be achieved by adding glue. It will crack over time, but its smoothness is very good.
Inorganic paint is paint without nutrients. It is usually based on lime. Because there are no nutrients to fly, the paint will not become moldy, and there is no need to add any adhesive. The lime will react chemically with the wall and be firmly integrated with the wall. It will not bubble and will not fall off easily, such as Geffen paint.
These are the two types of water-based paints I know about
Question 8: What are water-based paints? What is water-based paint? What types are included?
Any paint that uses water as a solvent or dispersion medium can be called water-based paint. Water-based paints include three types: water-soluble paints, water-dilutable paints, and water-dispersible paints (latex paints). Water-soluble coatings use water-soluble resins as film-forming substances, represented by polyvinyl alcohol and its various modifications. In addition, there are water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins.
Water-dilutable coatings refer to coatings prepared with post-emulsified emulsions as film-forming materials. The solvent-based resin is dissolved in an organic solvent, and then with the help of an emulsifier, strong mechanical stirring is used to disperse the resin in water to form an emulsion, which is called post-emulsification. Emulsified emulsions make paints that can be diluted with water during construction. Water-dispersed coatings mainly refer to coatings formulated with synthetic resin emulsions as film-forming substances. Emulsion refers to a dispersion emulsion composed of small particle clusters dispersed in water from unsaturated vinyl monomers polymerized under certain temperature conditions in the presence of an emulsifier and during mechanical stirring. Paints prepared by adding a little emulsion to water-soluble resin cannot be called latex paints. Strictly speaking, water-thinned paint cannot be called latex paint, but it is customary to classify it as latex paint.
Question 9: What are water-based coatings, solvent-based coatings and artistic coatings? What does each include? Water-based coatings probably refer to coating projects using water-based coatings. Water-based coatings refer to coatings that use water as the solvent or dispersion medium. Solvent-based coatings refer to coating projects that use solvent-based coatings. Solvent-based coatings refer to coatings that use organic solvents as the solvent. Dispersion media for coatings. It can be simply thought that the environmental performance of water-based paint is much better than that of solvent-based paint, but its performance is worse. Art paint is a decorative technique, such as adding some patterns and patterns to make the decoration effect better. The most common type of water-based paint is latex paint, which is mainly used in home decoration nowadays; there are many solvent-based paints, such as automotive paint, anti-corrosion paint, industrial paint, and fluorocarbon paint commonly used in construction, etc., all of which are solvent-based. coating.