Five wall paint shopping mistakes did you get it?

Wall paint is one of the main materials used for home decoration, occupying a large part of the whole home decoration area, the decoration effect and the living room environment play a key role. It can not only make the wall more beautiful and clean, but also play a role in protecting the building wall and extending the service life of the wall. Although wall paint is so important, how many people can learn more about wall paint? Can you choose the right wall paint? Below is to send welfare time, teach you how to buy wall paint, home clothes "little white" come to see it!
the classification and performance of the wall paint
1. The four major categories of wall paint
wall paint can be divided into different categories according to different standards, specifically, mainly according to the substrate, decorative effect, the use of the site and the use of functions of the four dimensions to classify .
by substrate: can be divided into organic coatings, inorganic coatings, organic -inorganic composite coatings. Among them, organic coatings include solvent-based, milk-based and water-soluble organic coatings, inorganic coatings including traditional cement, lime and so on.
by decorative effect: can be divided into smooth surface flat paint, sand wall-like paint with sand-like decorative effect, the formation of bump pattern three-dimensional decorative effect of the multi-layer coating.
by area of use: can be divided into interior wall paint, exterior wall paint.
by function: can be divided into decorative coatings, special functional coatings (such as fireproof coatings, mold-resistant coatings, waterproof coatings, elastic coatings, etc.).
The arrangement of these four dimensions results in a variety of coating categories, generally the substrate and the use of areas of two types of combined for coatings, such as solvent-based exterior paint, water-soluble interior wall coatings, inororal exterior paint and so on.
PS: The wall paint on the market is mainly latex paint this variety. Latex paint is an organic coating, is a synthetic resin emulsion as a base for pigments, fillers and a variety of additives made of a class of water-based coatings. Compared with other wall coatings, it is more environmentally friendly, there is no explosion and fire hazards in transportation and storage, at the same time, it also has the advantages of convenient construction, fast coating drying, good breathability, good water resistance and so on.
2. Four performance indicators of wall paint
Wall paint has a variety of indicators to determine its quality, the following mainly listed cover, adhesion, viscosity and fineness of the four indicators have a greater impact on quality. By understanding these indicators of coatings, there is also a basis for testing the quality of coatings.
cover force: apply the color paint evenly to the black-and-white grid, observe the minimum amount of paint covering the grid. The larger the amount of paint, the weaker the cover force, the stronger the covering force indicates that the amount of paint used per unit area is less.
adhesion: the bonding force between the coating film and the base, the degree of firmness between the coating film and the coated surface by physical and chemical action (the coated surface can be between a bare substrate or a coated primer). The wall paint with no strong adhesion is easy to fall off, affecting the beauty of the wall.
: the viscosity of the coating, which can be measured using the paint viscosity measuring instrument. Viscosity is an important index in coating performance, which has a great influence on the storage stability, construction performance and film-forming performance of coatings. Paint is too thick is not easy to paint, too thin is easy to fall, so the viscosity of the coating to be controlled within a certain range.
: the size of the particles in the coating and the uniformity of dispersion. The fineness size directly affects the flatness, gloss and permeability of the coating surface. Generally speaking, the finer the coating, the more expensive it is.
There are five misunderstandings about wall paint purchase
Misconception one: pay attention to price, ignore quality
Some consumers think that the higher the price of wall paint, the better, so when selected to find the most expensive to buy, but the experimental results show that this is not the case. The other extreme consumers in order to save money, when buying wall paint feel that the lower the price of the better, so that although save a lot of money, but the future wall quality and indoor environment is worrying.
so we consider the price, but also pay attention to the quality of wall paint, generally choose a reputable brand can reduce the risk of being deceived.
Misunderstanding 2: pay attention to packaging, ignore the inner
packaging is not good wall paint, may not be good quality, but the packaging of good paint is not necessarily excellent in-house quality. Some manufacturers in order to attract customers, in the packaging of products to make a big article, deliberately exaggerated the performance of the product.
consumers in the product packaging at the same time, but also pay attention to other aspects, such as viewing the product detailed testing list.
Myth 3: The color card is exactly the same color as the wall paint
Many consumers think that the color of the paint on the color card is exactly the same as the color of the brush on the wall, which is actually a mistake. Because of light reflection and other reasons, when the walls of the room are painted, the wall color will look darker than the color card.
, it is recommended that when choosing colors through a color card, it is best to choose a color number that is slightly lighter than your favorite color.
Myth 4: Do not estimate the amount of paint used in advance
Many consumers do not have the habit of estimating the amount of paint used in advance, and always afraid of buying less paint, so in the purchase is always more beneficial. This can lead to waste of materials and increase the cost of home equipment. At the same time, the accumulation of too much paint on the construction safety will also have a certain impact.
this requires us to look at the area of the construction area before construction, so as to estimate the amount of material purchased.
Myth 5: Odorless wall paint is environmentally friendly
Many people judge the safety of wall paint by smelling it, and think that low-odor or odorless wall paint is environmentally friendly. But this is a big mistake, because by adding flavor or using low-taste materials can achieve odorless, so odorless coatings are not all environmentally friendly and non-toxic.
the most professional way to judge the environmental protection of wall paint is to see whether its environmental indicators meet the standards. There are three key environmental indicators for wall paint: VOLATILE organic compound VOC, free formaldehyde, heavy metals.
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