In the process of residential decoration, as long as it is a place where water environment is frequently present, such as kitchens, bathrooms, etc., waterproof treatment should be carried out. The use of waterproof coatings is not only related to the overall effect of residential decoration, but also closely related to the physical health of residents. Water-repellent treatment is the "hidden project" in decoration, and its effect will be presented after a long period of use. If the waterproof coating contains toxicity, it will become an invisible killer in the home. Therefore, the choice of waterproof material can not be ignored.
At present, there are two major categories of waterproof materials on the market: First, polyurethane waterproof coatings. This kind of material is generally made of polyurethane and coal tar as raw materials. The tar gas it evaporates is highly toxic and is not easily removed. Therefore, it was banned from use in China in 2000. Polyurethane waterproof coatings are still being marketed, using asphalt as a raw material instead of coal tar. However, when using such a coating, it is generally diluted with an organic solvent containing toluene, xylene, etc., and therefore contains toxicity; the other type is a polymer cement-based waterproof coating. It is composed of a variety of water-based polymer emulsions and high-quality cements mixed with various additives. The flexibility of the polymer (resin) is integrated with the rigidity of the cement, making it excellent in impermeability and stability. Its advantages are convenient construction, low overall construction cost, short construction period, and non-toxic environmental protection. Therefore, polymer cement base has become the protagonist of the waterproof coating market.
The well-known brands of polymer cement-based waterproof coatings on the market include Singapore's imports of 'Quick Seal', 'Minglun' and domestic (including joint ventures) 'Dego' and 'Zhuoneng'. Due to the non-standard management of the building materials market, some fake and shoddy products can survive on the market. Some manufacturers did not produce according to national standards, their products have not been approved by relevant departments; some manufacturers even misappropriated well-known brands of packaging and various technical indicators to promote their counterfeit products. These products not only have quality problems but are also toxic. If used at home, it will reduce the effect of decoration and impair the health of residents.
The real environmental protection waterproof material should have the test report, product test report and product certificate issued by the nationally recognized testing center (CMA). When consumers purchase waterproof materials, they can also pay attention to the production areas indicated on the product packaging. On the packaging of imported branded products, the column of origin will be specified in detail by a certain company; counterfeit products will generally only be imported and not involved in the production company.
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