Nowadays, more and more consumers will buy interior wall paint to decorate the wall when they are at home. When purchasing interior wall coatings, we must not only pay attention to the problem of preventing formaldehyde from exceeding the standard, but also understand and pay attention to some technical indicators.
Contrast ratio
The contrast ratio of the paint is an important indicator of the ability of white and light paint to cover. The contrast ratio directly reflects the hiding power of the coating, and the hiding power is low, and the amount of the corresponding latex paint is increased.
Low temperature stability
Low temperature stability is a measure of the frost resistance of a coating when it is used at low temperatures. The solid content of the latex paint is generally 45%-50%, that is to say half is water, so the water in the latex paint freezes at 0 ° C or below 0 ° C, and the expansion pressure causes the polymer molecules to close together, and the particles are easy to coagulate. , causing the paint to deteriorate. Therefore, when purchasing paint, it is necessary to check not only the environmental indicators of the paint, but also the quality problems.
When purchasing, pay attention to whether the packaging container is damaged or swollen. When buying, you can shake it to check if there is any cementation. If these phenomena occur, you cannot buy it. Before use, first open the can to check whether the paint has delamination, sinking and agglomeration. If it is still uneven after being stirred, it cannot be used. Negotiations should be made immediately to the store you purchased.
In addition, when purchasing paint, we also need to obtain valid proofs such as purchase invoices and construction instructions from the dealers to avoid the possibility of defending the rights when product quality occurs.
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