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>>> Why paint prices vary widely?
In recent years, latex paint has become the most commonly used interior wall paint for its environmental protection, convenient construction, short construction period, good decoration, and easy modification. When buying latex paint, it is very important to inspect whether the paint has passed the certification and testing of the relevant agencies, because the general paint contains xylene, lead and other harmful substances, so one must carefully check the test report to see whether it reaches the national The environmental protection standard has the CMA test mark; this indicator is qualified does not mean that the product is qualified, but also depends on whether the product performance index meets the national standard. Only when both of the above indicators are qualified can they be regarded as qualified products. Inferior emulsion paint not only affects the quality of construction, but also contains unqualified chemical raw materials that can harm human health, so it should try to go to a specialty store or special dealer store to buy. The following describes several test methods.
(1) First look at the water solution.
After the paint has been stored for a period of time, delamination will occur, paint particles will sink, and a layer of water solution will form on the upper layer of 1/4. We can see that this liquid is colorless or yellowish and clear and clean. , No floaters or very little, indicating that the paint is of good quality. If the gum solution is turbid, showing a lot of paint color or the number of internal floaters, even covered with the surface of the solution, indicating that the quality of the coating is not good or the storage shelf life is over, should not be used.
(2) Look at the fineness of paint particles.
We can use a glass of water to test, take a small amount of paint into the water, gently stirred, if the water in the glass is still crystal clear, paint particles in the water is relatively independent, there is no adhesion phenomenon, and the particle size is more uniform, indicating that the coating quality is very it is good. If agitated, the water in the cup becomes turbid immediately, and the particle size is different, indicating that the quality of the coating is not good enough, and it is better not to use it.
(3) Using a small stick to stir up a little latex paint, it is better to hang the wire and continue to fall evenly.
(4) Use your finger to stick a little emulsion to make it feel smooth, without the rough feeling of sand, and when it is rinsed with water, it has a creamy feel. Genuine latex paint should feel smooth and delicate.
(5) Whether it smells strongly or not. The highly irritating emulsion paint may have a relatively high toxicity. The real environmental protection coating should be water-based and non-toxic and tasteless. In addition, it is best not to buy paints with added flavor because the additive itself is also a chemical product and it is difficult to protect the environment. .
(6) Brush the paint on the concrete floor. After the coating is dry, wipe it with a damp cloth. The genuine color is bright as new. The defective product will fade due to poor adhesion and water resistance.
(7) Pay attention to the production date and shelf life of the paint. Expired paints must not be purchased, otherwise there will be no end of trouble.
(8) For imported coatings, it is best to choose products with Chinese logos and instructions.
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