Knowledge of building materials to buy: the merits of the four indoor waterproof coating Competition.

<p> Despite the market, there are a lot of waterproof coating on the network, such as "two-component polymer waterproof coating," "one-component polyurethane waterproof coating" ... ... name of the profession, and many different types, but if .points according to the nature of the case, currently on the market in the sale of waterproof paint for interior only 4 species, they are different properties, advantages and disadvantages. .</ P> <P> <P> <p align="center"> </ p> <center> the merits of the four major indoor water paint Competition </ center> <p> 1, hard plaster, also known as rigid mortar .: emulsion ratio of 1:4 with the mortar, brushing was not required to process the coating can be directly tiling, more convenient. .After curing of a concrete lump, not seepage from the bag, the back surface of the water works well, is its greatest advantage. .Disadvantage is that such a mortar hardness, easy to crack as the primary deformation and cracking, it is generally used for the back surface of the water. .Price :200-300 yuan / barrel, a bucket of 18 kg, can brush 10-13 square meters. .</ P> <p> 2, flexible mortar: emulsion ratio is 5:4 and mortar, flexible, even if the crack will not affect the primary deformation waterproofing effect. .Used for wall and floor so positive side, not for the top surface so the back surface of the water, if water did not do a good job, there is water infiltration, it is easy to water seepage from the package. .Price :300-500 yuan / barrel, a bucket of 18 kg. .There is also a class of flexible silicone plaster class of waterproof coatings, are high-grade flexible mortar shells tension and Flexibility are good, but the price is 600 yuan / barrel, more expensive, the market is very rare. .</ P> <p> 3, acrylic: pure liquid openings is used. .Water can melt in water, it is easy and the ground cracks, forming a solid layer of waterproof, waterproof mortar better effect than flexible. .Need to nap, or after brushing sand Yang surface treatment to increase friction, easy tiling. .Works well as waterproof, flexible acrylic mortar, and more suitable for long-term immersion in the environment. .Price :300-500 yuan / barrel, a bucket of 18 kg. .</ P> <p> 4, single-component polyurethane: indoor and outdoor use either, brushing is very thick, about 3 millimeters, and the elastic tension of 300% or more, is very elastic, the crack will not be any substrate to .cracking, water was the best. .Although the security control in the list of environmental requirements, but the smell of such a large waterproof coating, it is generally difficult to accept, but very few brands are not the environmental performance standards. .Polyurethane gel was very thick, the construction need to use the scraper, it is laborious, is more complex. .After brushing the need for surface coating, brushed or sand to increase friction Yang, easy tiling. .Price: 500 yuan / barrel, a bucket of 18 kg. .</ P> <p> drying rate of these coatings by the climate, the influx of dry and cold climatic conditions more slowly, but the weather did not affect the waterproofing effect. .In general, the dry mortar class period is 24 hours, acrylic and polyurethane drying cycle is 24-48 hours. .</ P> <p> "single component", "two-component" difference: the mortar classes are two-component polymers, that is, the ratio formed by the emulsion and mortar; not acrylic and polyurethane .mortar ratio, is a single component. .</ P> <p> be dealt with before brushing the grass-roots </ p> <p> waterproof paint brush and the ground state has a lot to grass-roots, the less grass-roots level, the more use of paint. .Therefore, before brushing waterproof coating, it is best to deal with a simple grass-roots level, as far as possible formation of primary treatment. .Second, we should ensure that the ground clean, soilless, no oil, can take the mop carefully mopping the floor, removed all the dust, otherwise it would cause water paint cracking fade and impact of water effects. .</ P>.