Bathroom leaks and water seepage are currently the most common complaints. Bathrooms do waterproof work. Floor drains, wall corners, and pipe roots are the most likely problems. Not only must water-proof construction be in place, but also the quality of waterproof materials must be rigorous. Bathroom waterproof must be done both materials and construction.
There are many waterproof coatings on the market and on the Internet, such as “two-component polymer waterproof coatings†and “one-component polyurethane waterproof coatingsâ€. Names are professional and there are many types, but if they are divided according to the nature, they are used for indoor waterproofing. There are four kinds of coatings, they have different properties, each has its own advantages and disadvantages.
1. Hard mortar: also known as rigid mortar, the ratio of emulsion to mortar is 1:4. After coating, it is not necessary to process the coating, and it can be directly tiled, which is more convenient. After curing, it forms a cement block and does not cause water seepage. Its back surface has good waterproof effect and is its biggest advantage. The disadvantage is that this kind of mortar has high hardness and is easy to crack with the deformation of the base layer, so it is generally used for waterproofing the back surface. Market price: 200-300 yuan / barrel, a bucket of 18 kg, can brush 10-13 square meters.
2, flexible mortar: emulsion and mortar ratio is 5:4, with flexibility, even if the base deformation cracking will not affect the waterproof effect. It is mostly used on the surface of water, such as wall surface and ground surface, but it cannot be used on the back surface of the top surface. If waterproof is not done well, there is water penetration and it is easy to make water seepage. Market price: 300-500 yuan / barrel, a bucket of 18 kg. There is also a type of silicone-based waterproof coating in flexible mortar, which belongs to high-grade flexible mortar. The elastic tension and flexibility are good, but the price is about 600 yuan/barrel, which is more expensive.
3, acrylate: pure liquid, open and use it. Water-based, can be melted in water, it is easy to combine with the gap in the ground to form a strong waterproof layer, waterproof effect is better than flexible mortar. After brushing, it is necessary to perform surface treatment such as pulling or sanding to increase the friction and make it easier to tiling. Due to its excellent waterproofing effect, flexible mortars and acrylates are more suitable for long-term immersion in water. Market price: 300-500 yuan / barrel, a bucket of 18 kg.
4. One-component polyurethane: Both indoor and outdoor use, the brush is very thick, about 3 mm or so, and the elastic tension is more than 300%. It is very elastic. The cracking of any substrate will not make it crack. The waterproof effect is best. Although the safety performance control is among the environmental protection requirements, the odor of such a waterproof coating is relatively large and it is difficult for most people to accept, and the environmental performance of very few brands is not up to the standard. Polyurethanes are colloidal and are very thick. The use of scrapers during construction is laborious and complicated. After brushing the paint, it is necessary to perform surface treatment, pull the hair or lift sand to increase the friction, and easy to tiling. Market price: 500 yuan / barrel, 18 kg barrel.
Judging waterproof material mainly considers four aspects:
1 The coating shall be free from sedimentation, delamination, and agglomeration; 2 it shall have no strong irritating odor; 3 shall the construction be convenient; 4 whether it is a regular brand product or not.
The drying speed of these paints is affected by the weather, and the drying speed is slower in a cool climate, but the climate has no effect on the waterproof effect. In general, mortars have a drying cycle of 24 hours and acrylics and polyurethanes have a drying cycle of 24-48 hours.
"One-component" and "two-component" differences: mortars are two-component polymers, ie, they are made from emulsion and mortar; acrylates and polyurethanes are single-component without mortar.
Some waterproof products are marked with “kitchen and bathroom specialâ€. In fact, this is just a gimmick. General indoor waterproof paint can be used for kitchen and toilet.
Toilet waterproof precautions
1, bathroom waterproof height: must be waterproof wall, before the wall tiles, make the wall waterproof. In the general waterproofing process, the wall surface is to be waterproofed to a height of 30 cm. However, for a non-load-bearing lightweight wall, the entire wall should be waterproofed, and at least 60 cm in height must be achieved.
2, the bathroom waterproof smear: the seam between the wall and the ground and the pipeline between the ground and water seams, is the most prone to problems, we must urge the workers to deal with these edges and corners, a certain waterproof coating Apply it in place.
3, bathroom waterproof tile: re-floor tiles to do the floor waterproof If you need to replace the original floor tiles of the bathroom, after the original floor tiles are chiseled away, be sure to use the cement mortar to level the floor, and then do the waterproof treatment, so as to avoid the waterproof coating Leakage due to uneven thickness. Before you do waterproofing, be sure to clean the floor.
4, bathroom waterproof mulch: try not to destroy the original waterproof layer, in the new delivery of the general floor of the building have done a waterproof layer, so does not damage the original waterproof layer is generally not leakage. Requires the decoration team to do a good job of cement lining for the upper and lower water pipes of the toilet. Brush up 10 to 20 cm of waterproof paint from the floor, and then re-do the ester waterproofing on the ground. Add the original waterproof layer to form a composite waterproof layer to enhance waterproofing. Sex.
5, bathroom waterproof wall groove: the inner water pipe groove should also be waterproof, the construction process in the pipeline, floor drain, etc., when crossing the floor, the waterproof layer around the hole must be carefully constructed. Buried water pipes in the wall, so that a reasonable layout, the laying of water pipes will be greater than the diameter of the groove, smooth plaster groove, and then brush the groove waterproof coating.
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