How to choose several methods of latex paint?

The development and development of latex paint in China began in the 1960s. The real development was in the late 1970s. It began to be widely used in interior walls, exterior walls, and ceilings of buildings. For more than ten years, latex coatings have made great strides in terms of product variety, product level, production capacity, construction equipment, and promotion and application. Especially in recent years, the influx of high-quality foreign products, together with the propaganda offensives of some large companies, has greatly increased the popularity of latex paints and promoted the development of latex paints.

First, an overview: Latex paint commonly known as latex paint, officially known as synthetic resin emulsion paint, based on synthetic resin emulsion as a base material, adding pigments, fillers and various additives prepared by a class of water-based paint. Only by clarifying its composition can we distinguish authentic products from the market. At present, the architectural paint market has a low price (price is only 2-3 yuan / kg) but it is labeled "high-grade latex", "economical latex paint" and other names, and the sales momentum is good. In fact, this kind of product is based on polyvinyl alcohol or even starch and other water-soluble resins as the main film-forming substance. Without adding or adding only a small amount of emulsion, it will use the name of latex paint and it is a fake and shoddy product, causing confusion to the market. This article does not include such coatings.
Second, the characteristics of latex paint: 1. The latex coating uses water as the dispersion medium, does not pollute the environment, is safe, non-toxic, and has no fire hazard. It is an environmentally friendly product. 2. Construction is convenient, consumers can do brushing or roller coating by themselves, and construction tools can be cleaned with water. 3. The coating film dries quickly and the construction period is short. Under appropriate climatic conditions, paint application may sometimes be completed on the same day. 4. Good decoration, a variety of colors, luster (no light, matte, half light) can choose, fresh and elegant decoration. For example, silk latex paints, which are more popular in recent years, have a silky matt finish, smooth and delicate feel such as silk, which can create a warm atmosphere for the living room. 5. In terms of maintenance, if you want to change the color, you only need to do a little treatment on the original coating to apply a refreshed latex paint. In developed countries in Europe and America, it has become a kind of family fun to paint your own latex paint to change the color of housing. Although the latex paint decoration than wallpaper, wood wall skirting, wood veneer, soft packs and other decorative materials look so luxurious, style, but it is more suitable for home decoration comfort, warm needs. Therefore, latex paint is an ideal material for interior wall decoration.
Third, the gap between different products: At present, China's architectural coatings market is fiercely competitive. Overseas latex paint products have entered China. Foreign companies not only bring advanced technology, but also bring a wealth of marketing experience. This is not a small impact on the domestic market, but it also promoted the level of domestic latex paint. What are the differences between domestic and foreign latex paint products? One of the outstanding advantages of foreign products is the "opening effect" is good. After opening the package, give a good impression, delicate appearance, fullness, like the paint, high viscosity and uniform and good flow; Another advantage is good construction, brushing area per square meter, hiding power Strong, smooth and no brush mark, soft color, overall decoration effect.

Domestic latex paint products, from the use of synthetic resin emulsions and coating film performance with its preparation, is comparable with foreign products, some properties such as water resistance, pollution resistance, etc. are also better than foreign products. However, there is still a small gap between the “opening effect” and the construction and the appearance of the coating film. After opening the package, there is often a phenomenon of thinning and thickening, and some even have water separation. The lower part has soft precipitation, and it must be stirred to achieve uniformity. Some products from the appearance point of view is to pay attention to the problem of thickening, but it has affected the liquidity, poor construction, severe paint brush marks, color is not soft enough, fullness is also poor. When we see the difference, we can improve our quality. At present, some domestic manufacturers have used foreign additives and other raw materials to solve the above problems. Some manufacturers' latex paint products are comparable to foreign products. Not only does the physical performance of the product meet or exceed the national standards, but it also has a qualitative leap in terms of construction performance, with less smeared brush marks and softer color. In addition, there is a great advantage in terms of price over foreign products and it is very promising.

Fourth, the judgment and identification method of latex paint: 1. Canning effect is good, no water, no starch, no rust, no mildew. 2. The construction effect is good, no brush marks, roller marks, and the unit brushing area is large, and the hiding power is good. Hiding power refers to the minimum amount of paint that is applied evenly to the surface of the wall to make it no longer present, expressed in grams per square meter. The smaller the value, the better, indicating that the amount of use per unit area is small. In the former national standard GB9756-88 "synthetic resin emulsion interior wall paint", the standard is ≤ 250 g/m2. With this index, the amount of paint to be applied can be calculated. 3. Film can not afford powder, dirt can be scrubbed with water. This requires that the coating has a certain scrub resistance, in the national standard GB9756-95 "synthetic resin emulsion interior wall coating", the provisions of qualified products for not less than 100 times, first-class goods not less than 300 times. Some products have scrub resistance of up to 2,000 times without change of the coating, and some products are only washed several times, and the coating will be damaged. 4. The color of the paint film is soft and not blooming. To judge the quality of latex paint should be based on a comprehensive analysis of the performance, comments, and should not only be based on a certain performance conclusions. The choice of latex paint should be based on the purpose, orientation, size, and decoration budget of the room to be renovated by the consumer to select products of different varieties and colors. The following issues should be noted when choosing latex paints: A. Try to use branded or branded products as much as possible. For products of the same type, the ones marked with national environmental protection products should be preferred. The production companies of these products have large scale, high output, strict management, and guaranteed product quality. B. There should be more important marks and data such as trademark, manufacturer name, production date and weight on the barrel of latex paint. C, it is best to buy in the building materials mall or store, these businesses pay more attention to the purchase channels and product reputation, product quality is more assured. Never try to buy cheap products at some grocery stores. D. Check the emulsion paint for mold, rust, severe water separation or special smell.


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