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In the home improvement process, fire retardant paint is used in large quantities. However, because the appearance of fireproof paint is very similar to ordinary paint, the price is higher than that of ordinary paint. Therefore, a large number of counterfeit fireproof paints appeared on the market. How to identify these counterfeit products? Here is a simple way to identify:
A preliminary inspection of the quality of the product can be performed at the site: Take two or three small samples on the already constructed substrate, or apply a small amount of the sample to the plywood and apply it according to the actual construction.
Under normal circumstances, according to the provisions of the amount (usually 500 grams / square meter) construction, a layer of fire retardant foam layer thickness of 20mm or more, secondary fire-retardant foam layer thickness of 10mm or more, bubble layer should be uniform and dense.
After being dried, check with the flame of the alcohol lamp. The height of the flame is about 40mm, and the time for applying the flame is generally 20 minutes. Check the foaming of the coating. You can also use torches for inspection. When the fireproof paint is burned by a strong fire, it will foam and swell, and the surface will gather and bulge. The burnout phenomenon will not occur in a few minutes. The fake fireproof paint will not foam, and there will be a lot of scattered dregs. , The wood substrate will soon burn and break.
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