Painting Society Science: Identification and purchase of interior wall paint!

First, the current type of interior decoration interior wall paint is a low-grade water-soluble paint, is polyethylene alcohol dissolved in water, and then add pigments and other additives.
has taken a variety of steps to improve its performance and reduce costs, with a number of brands, with major products such as 106, 107,801, and interior wall coatings.
the shortcomings of this coating is not water-resistant, alkali-resistant, the coating is easy to peel off after moisture, is a low-grade interior wall paint, suitable for general interior wall decoration.
this kind of paint has the advantages of cheap, non-toxic, odorless, convenient construction and so on.
Dry wipe can not drop powder, because its film is water-soluble, so after scrubbing with a damp cloth always leave some traces, durability is not good, easy to yellow color change, 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- and medium-grade room or temporary room interior wall decoration selection.
The second category is latex paint, which is a water-based medium, acrylic, styrene-acrylic copolymers, ethylene acetate polymer aqueous solution as a film-forming substance, made with a variety of auxiliary ingredients.
its film is insoluble in water, the water resistance and weather resistance of the coating film than the first category greatly improved, wet scrubbing after no traces, and there are flat light, highlights and other different types of decoration.
because of its less color, the decorative effect is similar to 106 categories.
these two types of coatings are not a grade at all, is a medium and high-grade coatings, although the price is more expensive, but because of its excellent performance and decorative effect, the market share is growing.
good latex coating layer has good water resistance, alkali resistance, wash resistance, the coating will never peel off after moisture.
Generally speaking (in the same pigment, volume, concentration conditions), PHEN latex paint than ethyl propylene latex paint water-resistant, alkali-resistant, scrub-resistant, ethyl-propylene latex paint than polyacetic acid ethylene latex paint (commonly known as latex paint).
The third category is currently very popular colorful paint, the coating film-forming substance is nitroculose, in the form of water-coated oil scattered in the water tank, a spray can form a variety of color patterns.
In recent years, there is a imitation porcelain paint belongs to the fourth category, its decorative effect is delicate, smooth, elegant, the price is not high, but the construction process is complicated, wet wipe poor two, how to judge the quality of latex paint open the lid, the real environmental protection of latex paint should be water-free non-toxic tasteless, so users smell when there is a stimulating odor or industrial flavor, is not ideal choice.
after a period of time, the surface of genuine latex paint will form a very thick elastic oxide film, not easy to crack, and the secondary product will only form a very thin film, fragile, with a spicy smell.
mix the latex paint with a wooden stick, then stir it up with a wooden stick, and the high-quality latex paint will form a fan shape when it flows downstream.
touch with your fingers, genuine latex paint should feel smooth and delicate.
real latex paint has no irritating odor, while the low-grade water-soluble coating of counterfeit latex paint may contain formaldehyde, so it has a strong irritating taste.
Second, you can brush a little paint to the cement wall, coating dry with a wet cloth scrubbing, real latex paint scrub resistance is very strong, wipe one or two hundred times on the appearance of the coating will not have a significant impact, and low-grade water-soluble paint only wipe a dozen times that occurs powder, dew bottom fade phenomenon.
latex paint to the wall, the color of the genuine is as bright as new.
to look at the ingredients when shopping, the composition of high-quality coatings should be co-polymer resin or pure acrylic resin.
don't forget to look at the shelf life of the product.
3. Why latex paint is better than solvent-based paint latex paint is water-based paint, their paint film performance is much better than solvent-based paint, accounting for half of solvent-based paint organic solvents are replaced by water here, so the toxicity of organic solvents, basically by latex paint completely solved.
latex paint is made of some polymer aqueous solution film substances, in addition to water and safe and harmless different types of polymers or polymers, but also contains a small amount of emulsifying agents and trace amounts of non-polymerized free monomer, free monomer is some volatile small Molecular substances, there are different degrees of toxicity problems, now the concentration of environmentally friendly paint free monoliths is controlled at less than 0.1%, the dosage of additives is more than 2% to 3%, and the less is only 0.05% to 0.1%.
the current poor quality latex paint toxic free monolith concentration and additive dosage dozens of times or hundreds of times, affecting health.
are now commonly used in China Resources paint, Libang, Doles paint have reached the prescribed environmental standards are safe.
the current market latex paint brand a lot, and imports and domestic co-driven, fierce competition.
in the quality of security, the better reputation of the brand is the United States Coates, Doles, Libang paint, three trees, Chenyang water paint and so on.
these brands are generally no less than 300 times, some up to 2000 times.
imported brands are "green products", in the outer packaging on the international certification mark, such as Germany is the "blue sky messenger" logo;
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