What Is a Washcoat?

The wall paint is the top paint, which is often referred to as the latex paint. It is one of the main decorative materials used for the wall in home decoration. It accounts for a considerable proportion of the basic renovation costs. It is very important to choose a high-quality wall paint. In order to achieve the purpose of bonding, the main component of the wall paint is formaldehyde, which can be firmly bonded to the wall.

Wall paint

Wall paint is top paint, which is what people often say

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Wall paint can also be called

Faced with various environmental protection concept wall paints on the market, many consumers believe that "low-odor or odor-free interior wall paints must be environmentally friendly." This is an absolute misunderstanding of the environmental protection of coatings. Because the interior wall paint can achieve odor-free by using low-odor latex materials, and not all odor-free products do not contain harmful substances. How to judge the environmental protection of wall paint? The most professional method is to see if the environmental protection indicators meet the standards. The environmental protection standard for wall paint comes from the GB1852-2001 standard requirements formulated by the state. Standards: Volatility of wall paint

The service life of the wall paint mainly depends on the composition of the coating emulsion. At present, the best is pure acrylic emulsion. The life of this emulsion is relatively long, can reach several decades, and the price is relatively higher. Several other emulsions on the market, such as vinegar,

When choosing a wall paint, in addition to the environmental protection and color issues that everyone is concerned about, there is also a very important factor, that is, the effect of the paint film, which is also the reason that directly reflects the quality of the wall paint.
In the field of coatings, the effect of paint films is a more professional issue. Here are some of the most important points:
1. Scrubability of wall paint film. The higher the scrubability of the paint film, the higher the density of the wall paint, the better the quality and the better the effect. At the same time, if the scrubability is good, it will be convenient for everyone.
2. The better the elasticity of the paint, the less likely it is to crack after painting, so the quality of the wall paint is more guaranteed.
3. The mildew resistance of the wall paint film, wet weather or near-sea places often have such troubles, pay more attention to mold problems, exterior walls, indoor watery places and so on.

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The name, trademark, net content, composition, method of use and precautions are usually marked on the front of the wall paint. Pay attention to the production date and shelf life. The shelf life of each brand of latex paint ranges from 1 to 5 years. Buy products with a closer production date if possible.

Shake to hear the sound

Regular brands of latex paint generally do not hear the sound, and it is easy to shake the sound to prove that the viscosity of the latex paint is insufficient.

Open can inspection

At first glance at the water solution, the high-quality latex paint is relatively viscous, milky white liquid, no hard lumps, uniform state after stirring, no odor; second look at the drawing, take the brush to stick the latex paint, which can hang the wire long and constantly fall. It s good; three tests, feel with your fingers, genuine latex paint should feel smooth and delicate; four smell, non-environmental-friendly paint mostly have irritating odor, smell whether there is a pungent smell in the paint.

After confirming that the environmental performance and service life are good, how can I spend less money to buy a suitable wall paint? The key is the amount of paint consumed, that is, the amount used. When purchasing wall paint, in addition to concrete consideration of construction level and environmental factors, it is also necessary to look at another basic function of wall paint-hiding power. With good hiding power, the amount of paint consumed per unit area is small, and the area painted is large. At the time of purchase, you can take a few points from different wall paint samples, apply them on the same material, and compare them after drying. The results are very obvious. The wall paint on the market can basically meet the requirements of ordinary consumption in terms of environmental protection performance, service life, and hiding power. Of course, if you need the product to have some special functions, such as painting for children's rooms, you need a more durable and easy-to-clean wall paint.

How can we prevent the wall from yellowing during decoration?

During the construction, pay attention to timely ventilation and ventilation, so that the various chemical components of the material are volatile as much as possible to avoid chemical reactions, which can effectively prevent the wall from yellowing. Of course, some of these constructions also need attention, such as washing the floor paint first, then ventilating, and then completely drying the wall before painting. You can also brush the wall once, and then dry the floor, then brush the floor. After the floor is dry, brush the wall several times to ensure that the wall is white.

1. For plastering decoration on the newly painted paper and gray wall, wait until the outer layer of lime is completely dry, otherwise it will cause plaque on the wall and affect the beautification effect.

2. When refreshing on dark old lime walls, including those with a lot of spots, you should first brush it with white and gray water, and then set the refreshing color after it is dry and white.

3. If you paint the lime wall that has not been painted for more than half a year, add acid colored dry wall paint. If green, sky blue and other colors are prone to neutralization and panning, you need to pay attention.

4. During the process of brushing the lime slurry, the lime slurry should be constantly stirred, otherwise, the lime slurry will settle and there will be various shades on the wall after brushing.

5. When painting, you should master the principles of top-down, one-by-one brushing, and vertical brushing, or horizontal brushing from left to right, but you should be careful not to miss the pen.

The wall paint is a direct external layer, so it has stricter technical requirements for painting. The construction of workers and the arrangement of time require certain skills. In addition, you must wait for the second coat of paint. The first top coat can be painted only after it is dry, and the second top coat must be formed once. It cannot be repaired. It ensures the uniform color and thickness of the coating, no exposed bottom, no leak coating, no sagging, no ride. The color and separation are clear. Try not to add water to the topcoat, especially for dark-colored topcoats. Otherwise, the color may be inconsistent due to the different proportion of water added to each barrel. Some coatings or coatings need to be sprayed. For example, silver paste fluorocarbon paint, because the aluminum flakes in the paint are flakes, one must maintain a fixed angle and a fixed distance from the wall when spraying, and it must be formed at one time, and repeated re-spraying is prohibited, otherwise Will cause the coating gloss is not the same, after re-spray will be dark and other undesirable phenomena.

When decorating a new house, if there is no pollution, that is a nonsense. It is nothing more than pollution. It may be the problem of exceeding or not exceeding the standard. Maybe everything you buy does not exceed the standard. Besides, the standards set by our country are very low.

Open the window and ventilate, the decoration is just over, and the pollution must be several times, dozens of times, or even hundreds of times over the standard. Therefore, in the initial one to two weeks, no means will be of much use. Major pollutants are discharged outdoors. In addition, in order to accelerate indoor and outdoor air exchange, you can also use electric fans.

After the first step, the indoor pollution has changed from dozens or even hundreds of times exceeding the standard to several times or almost not exceeding the standard. At this time, the pollutants are emitted into a slow release process. No matter how you ventilate, it is impossible You need to prepare for a long-term battle at this time. You can use the following methods: First, flowers and plants, such as

The wall paint we usually refer to actually includes interior wall paint and exterior wall paint, which are mainly divided according to the use parts on the building, and it is one of the main decorative materials used in the decoration in the decoration.

I. Future development trend of interior wall coatings

The market, technology, production and use of interior coatings will continue for some time. Film-forming materials will still be mainly styrene-acrylic emulsions, with a small amount of vinegar-acrylic and pure acrylic emulsions.

1.Improve the performance of low cost, high pigment volume concentration synthetic resin emulsion coatings

In fact, there is still more research work on synthetic resin emulsion coatings in technology. Aside from the many problems of synthetic resin emulsion exterior coatings and functional interior coatings, whether it is for decorative interior coatings alone, a large number of low-cost, high pigment volume concentration synthetic resin emulsion coatings are used, some small The formulations used by paint factories are very unreasonable. Most of these formulas are obtained from raw material suppliers. This has the problem that in order to use more of the promoted materials in coatings, there may be factors that artificially increase the amount of certain materials. Except for the film-forming aids, which can improve the performance of latex paints, other additives only improve the coating film properties of latex paints, and have no significant effect. Therefore, it is necessary to carry out in-depth research on the formulation of low-cost interior wall latex paints with large volume and wide area to make them more reasonable. For example, the amount of additives in the coating is reduced without reducing the performance of the coating, and the cost of the coating is reduced.

On the other hand, low-cost, high pigment volume concentration synthetic resin emulsion coatings need to be done to improve the coating film performance of such coatings. For example, with the same low-cost coatings, some brand-name products have much better feel and texture than the coating films of general brand products. Therefore, improving the decorative effect of such coatings is also a subject that needs to be studied.

2.Develop a new type of interior wall coating

Interior wall coatings will mainly develop towards healthy and fine types. The so-called healthy type is that the coating itself has bactericidal, anti-mildew functions and functions that can improve the living environment. There are already nano-coating additives in the market that can release negative ions into the air, and nano-inorganic coating additives that have anti-mold and anti-bacterial functions More studies have also been obtained, and some studies have achieved good results. The so-called fine type refers to the use of ultra-fine fillers to finely process the coating to obtain a coating film with a delicate look, smooth feel and full texture. In short, the development trend of interior wall coatings is to improve the decorative effect of the coating film and increase the function of the coating. At the same time, according to market demand, people will also work hard to research and develop new coatings that can highlight characteristics, show personality, and have obvious technical-economic performance advantages. For example, high-end, multifunctional interior coatings called "three-in-one" (anti-mildew, anti-bacterial, anti-cracking, stain resistance, etc.) or "four-in-one" can reduce costs and maintain the same performance of organic-inorganic composites. Type interior wall coating, low cost latex paint with ash calcium powder as filler with carbon dioxide absorption function.

3. Development of new organic-inorganic composite interior wall coatings

The painted buildings are not only rich in color, but also have different gloss and smoothness. Coupled with a variety of three-dimensional patterns and signs, and coordinate with the surrounding environment, it will make people visually beautiful and comfortable.

If the interior is decorated with interior wall paint and floor paint, people living in the room will have a sense of joy. If the coating is mixed with coarse and fine aggregate, or by brushing, spraying and knurling, it can be used to obtain a variety of textures, patterns and texture coatings. It is a special artistic effect of the building, which can beautify The environment, the purpose of decorative architecture.

1.Keep ventilation

In order to make the wall paint dry and form a film as soon as possible, it should be adequately ventilated. However, in the winter in the north, because the outdoor temperature is too low, it will affect the film-forming effect of the wall paint, so pay attention to the insulation of the room when ventilating.

2. Avoid objects against the wall

After the indoor wall paint is completed, do not lean furniture or construction tools against the wall before the paint is dry. This will easily stain the wall surface and affect the appearance.

3. Pay attention to waterproof and fire protection

To prevent water leakage in the room, the wall paint is prone to emptying when it encounters water. Also don't smoke next to the wall, this will easily change the color of the wall paint.