During the renovation process, as long as it is a place where water environment is frequently present, such as kitchens, bathrooms, etc., waterproof treatment should be performed. 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. Waterproofing is a “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. These materials are generally made of polyurethane and coal tar as raw materials. The volatilized tar gas is highly toxic and cannot be 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 and the like, and thus contains toxicity; and 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, non-toxic and environmental protection. Therefore, polymer cement base has become the protagonist of the waterproof coating market.
There are three characteristics of waterproofing in the bathroom. The first is not affected by the natural climate, the temperature change is not, the material's elongation rate is not high; second, the area is small, there are many yin and yang angles, and there are many pipes through the floor; Third, the waterproof layer on the wall is tiled and bonded Agent affinity is good. According to the above three characteristics, the coil material cannot be selected, only the coating is the most suitable, and the cement-based acrylate coating is the most suitable for the coating, and the ceramic tile can be firmly bonded on the above.
How to use simple and intuitive methods to identify the advantages and disadvantages of new waterproof materials
The paint can see whether the color is pure, there is no smell, there is no sediment and so on. Especially for composite coatings, the current manufacturers of composite coatings are springing up. More and more emulsions and their respective powders are also used in different applications. How to identify the advantages and disadvantages? The easiest way is to put the sample into the cup of clear water, and observe it for a few days to see if the water becomes turbid, whether it swells, there is no emulsion, and then remove the sample. Whether or not it becomes weak and soft when stretched, such a material is very unfavorable in a long-term environment in which water is soaked, and the waterproof quality cannot be guaranteed.
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