Paint knowledge | knowledge of interior wall coating selection
Last Update: 2020-04-03
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Core tips: first, what kinds of interior wall coating are there? One is low-grade water-soluble coating, which is made by dissolving polyvinyl alcohol in water and adding pigment and other additives In order to improve its performance and reduce its cost, a variety of ways have been adopted, with many brands The main products are 106, 107803 interior wall coating The disadvantage of this coating is that it is not water-resistant and alkali resistant The coating is easy to peel off after being damped It is a low-grade interior wall coating and suitable for general interior wall decoration This kind of coating has the advantages of low price, non-toxic, odorless and convenient construction The powder can't be wiped off dry As the film-forming substance is water-soluble, it is necessary to leave some after scrubbing with a wet cloth Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: first, the current indoor decoration interior wall paint has those kinds of low-grade water-soluble paint, is polyvinyl alcohol dissolved in water, and then add pigment and other additives into it In order to improve its performance and reduce its cost, a variety of ways have been adopted, with many brands The main products are 106, 107803 interior wall coating The disadvantage of this coating is that it is not water-resistant and alkali resistant The coating is easy to peel off after being damped It is a low-grade interior wall coating and suitable for general interior wall decoration This kind of coating has the advantages of low price, non-toxic, odorless and convenient construction Dry wipe powder, because its film-forming material is water-soluble, so with a wet cloth after scrubbing always leave some traces, durability is not good, easy yellow color, but its price is cheap, construction is also very convenient, the current consumption is still the largest, about 50% of the market, mostly for low-end or temporary indoor wall decoration The second type is emulsion paint, which is made of acrylate, styrene acrylate copolymer, vinyl acetate polymer aqueous solution as film-forming substance and adding a variety of auxiliary components The film-forming substance is insoluble in water, and the film is coated Compared with the first type, the water resistance and weather resistance of the product are greatly improved, leaving no trace after wet scrubbing, and there are different decoration types such as flat light and high light Due to its less colors, the decoration effect is similar to 106 kinds In fact, these two kinds of coatings are not of the same grade at all They belong to the middle and high-grade coatings Although their prices are relatively expensive, they occupy a larger and larger market share due to their excellent performance and decorative effect Good latex coating layer has good water resistance, alkali resistance, scrub resistance, and the coating will never peel off after being damped Generally speaking (under the same conditions of pigment, volume and concentration), styrene acrylic emulsion paint has better water resistance, alkali resistance and scrub resistance than ethylene acrylic emulsion paint, and ethylene acrylic emulsion paint is better than polyvinyl acetate emulsion paint (commonly known as emulsion paint) The third type is a very popular multi-color coating The film-forming material of the coating is nitrocellulose, which is dispersed in the water phase in the form of oil in water A spray can form a variety of color patterns In recent years, another kind of porcelain like coating has appeared, which belongs to the fourth category Its decoration effect is delicate, bright and clean, elegant, and the price is not high However, the construction process is complicated, and the resistance to wet rubbing is poor Secondly, how to judge the quality of the emulsion paint after opening the cover is really environmentally friendly The latex paint should be waterborne, non-toxic and tasteless, so if the user smells, if it has pungent odor or industrial flavor, it is not an ideal choice After a period of time, the surface of the genuine latex paint will form a very thick elastic oxide film, which is not easy to crack, while the defective paint will only form a very thin film, which is fragile and has a pungent smell Mix the emulsion paint with a wooden stick, and pick it up with a wooden stick When the high-quality emulsion paint flows down, it will form a fan shape Touch with your fingers, the genuine latex paint should feel smooth and delicate The real latex paint has no irritating smell, and the low-grade water-soluble coating of fake latex paint may contain formaldehyde, so it has a strong irritating taste Secondly, a little paint can be brushed on the cement wall After the coating is dry, it can be scrubbed with a wet cloth The real latex paint has a strong scrubbing resistance, and one or two hundred times of scrubbing will not have a significant impact on the appearance of the coating, while the low-grade water-soluble paint only has a dozen times of scrubbing, which will cause the fading phenomenon of powder falling and exposed bottom Emulsion paint is applied to the wall, and the color of the authentic product is as bright as new In the purchase to see the composition, the composition of high-quality paint should be copolymer resin or pure acrylic resin Don't forget to look at the shelf life of the product 3、 Why latex paint is much better than solvent paint? Latex paint is water-based paint Its film performance is much better than solvent paint The organic solvent, which accounts for half of solvent paint, is replaced by water here Therefore, the toxicity of organic solvent is basically solved by latex paint Emulsion paint is made of some polymer aqueous solution In addition to water and different types of safe and harmless polymers or polymers, it also contains a small amount of emulsifier and a small amount of unpolymerized free monomers The free monomers are The volatile small molecular substances have different degree of toxicity Now the concentration of free monomers of environmental protection paint is controlled below 0.1%, the dosage of additives is 2% to 3%, and the dosage of additives is only 0.05% to 0.1% At present, the toxic concentration of free monomers and the amount of additives used in inferior latex paint exceed the standard by dozens or hundreds of times, which affects the health Now the commonly used varnishes, lipang and Dulux paints have reached the specified environmental protection standards and are safe At present, there are a lot of latex paint brands in the market, and the imported and domestic products are on the same pace, with fierce competition The domestic brands with guaranteed quality and good reputation are China touch paint, love paint, and painters, etc.; the imported brands are Dulux, lipang paint, and visa, etc The washability of these brands is generally no less than 300 times, some as high as 2000 times If the imported brand is a "green product", there is an international certification mark on the outer package, for example, Germany is a "Blue Angel" sign; the domestic product can only be called a "green product" if it has the word "product certified by China Environmental Labeling Product Certification Committee" 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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