Today, there is a phenomenon in the interior decoration market: on the budget sheet of the home improvement company, the brand or type of topcoat is generally specified, but there is no clear brand of primer, and some primers are written by Shi Lili. Mei Shili and other low-grade engineering paints, few companies use the same series of primer and topcoat construction, and most consumers often overlook this issue. In fact, this is an awareness issue that needs attention. Many customers or decoration companies do not attach importance to the primer, and think that the primer is in the inside. There is not much relation between the quality and the topcoat. The topcoat is more intuitive. More importantly, this is not actually the case. In fact, the ultimate effect of latex paint has a great deal to do with grassroots treatment. We often see problems with mildew, peeling, and biting at the surface. In fact, many situations are not related to the quality of the topcoat, but are due to the lack of primer or improper construction.

Primer is an important part of the entire interior wall latex paint renovation construction process. Its role mainly includes:

1. Reinforce the grassroots to reinforce and protect the loose interior wall putty;

2. To reduce and evenly absorb the water absorption of the base layer to prevent the paint film from being uneven and the color from being poor due to the large and uneven water absorption of the interior wall putty;

3, to improve the adhesion of the coating on the putty, the primer generally low viscosity, surface tension is slightly lower, fine particles, good fluidity, easy to penetrate into the putty surface, resulting in good adhesion;

4, the sealing effect, the primer can penetrate into the putty layer to fill the pores, can effectively prevent putty in the salt, alkali and other harmful substances with the evaporation of water to the paint film surface migration, affect the topcoat surface effect and the overall performance of the paint film .

At present, common interior wall primers include substrates such as masonry, gypsum board, asbestos board, concrete, wood board, and cement mortar. Before construction, attention must be paid to the following: The grass-roots level must be smooth and firm, and there must be no phenomena such as powdery grease, sanding, hollowing, and falling-off. Scrape putty should be thin and not thick brush. After the putty is dried (the moisture content is less than 10%), sandpaper is used to remove the floating powder. In accordance with the process of ordinary home interior decoration: putty + water-based sealing primer construction 1 coating + water-based interior wall paint construction 1-2 coating, can basically achieve the desired protection and decorative effect.

Now the company is equipped with a series of primers such as classic water-based universal primer and universal seal primer. The product belongs to modified acrylic copolymer latex paint. The raw materials adopt imported pure acrylic primer emulsion and high-quality additives and powders. Products are in line with the national mandatory standards GB18582-2001 "interior decoration materials interior wall coating harmful substances" and GB/T9756-2001 "synthetic resin emulsion interior wall coating" of the various requirements. The paint film has good sealing performance, good air permeability, waterproof and anti-alkali properties, and can effectively prevent wall acid, alkali and other harmful substances from being precipitated and released as the water evaporates. It can improve the overall coating adhesion and provide a solid and smooth base surface. Protect the properties of the finish. The product has good construction, good leveling and fast drying, large brushing area for the same amount of product, fresh and aromatic smell during construction, low content of harmful substances such as VOC, and the construction of the classic topcoat is more environmentally friendly, does not pollute the home environment, and is safe to use.
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