Waterproof coatings are favored in many fields because of their excellent protective properties. According to the author's understanding, there are many kinds of waterproof coatings in the market, such as two-component polymer waterproof coating, one-component polyurethane waterproof coating and so on. However, how to choose high-quality waterproof coatings is believed to be a problem for many consumers. In fact, according to the nature of the points, the market in the sale of waterproof paint can be divided into four types, their performance is different, but also have their own advantages and disadvantages.
Hard mortar: The waterproof effect of the back surface of the coating is good. The hard mortar, also called rigid mortar: the ratio of the emulsion to the mortar is 1:4. After the brushing, the coating does not need to be processed, and it can be directly tiled, which is more convenient. After curing, it forms a cement block, which 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. Price: 200-300 yuan / barrel, a bucket of 18 kg, can brush 10-13 square meters.
Flexible mortar: cracking does not affect the waterproof effect Flexible mortar: The emulsion and mortar ratio is 5:4, with flexibility, even if the base layer deformation and 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. 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 600 yuan/barrel, which is relatively expensive and very rare on the market.
Acrylics: prolonged soaking does not affect functional acrylates: pure liquids, which are ready for use. 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 flooding. Price: 300-500 yuan / barrel, a bucket of 18 kg.
One-component polyurethane: flexible indoor and outdoor use of single-component polyurethane: indoor and outdoor use, brushing is very thick, about 3 mm or so, and the elastic tension is more than 300%, very elastic, any substrate cracking will not make Its cracking, the best waterproof effect. Although the safety performance control is among the environmental protection requirements, the odor of such a waterproof coating is relatively large, which is unacceptable to most people, 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. Price: 500 yuan / barrel, a bucket of 18 kg.
Common knowledge of waterproof coatings: different in nature. Different in waterproof coatings, the difference between “one-component†and “two-component†is that mortars are all two-component polymers, ie, they are made of emulsion and mortar. Ester and polyurethane are single-component without mortar.
In addition, the drying speed of these paints is affected by the climate, and the drying speed is slower in a cool climate, but the weather 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.
Hard mortar: The waterproof effect of the back surface of the coating is good. The hard mortar, also called rigid mortar: the ratio of the emulsion to the mortar is 1:4. After the brushing, the coating does not need to be processed, and it can be directly tiled, which is more convenient. After curing, it forms a cement block, which 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. Price: 200-300 yuan / barrel, a bucket of 18 kg, can brush 10-13 square meters.
Flexible mortar: cracking does not affect the waterproof effect Flexible mortar: The emulsion and mortar ratio is 5:4, with flexibility, even if the base layer deformation and 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. 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 600 yuan/barrel, which is relatively expensive and very rare on the market.
Acrylics: prolonged soaking does not affect functional acrylates: pure liquids, which are ready for use. 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 flooding. Price: 300-500 yuan / barrel, a bucket of 18 kg.
One-component polyurethane: flexible indoor and outdoor use of single-component polyurethane: indoor and outdoor use, brushing is very thick, about 3 mm or so, and the elastic tension is more than 300%, very elastic, any substrate cracking will not make Its cracking, the best waterproof effect. Although the safety performance control is among the environmental protection requirements, the odor of such a waterproof coating is relatively large, which is unacceptable to most people, 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. Price: 500 yuan / barrel, a bucket of 18 kg.
Common knowledge of waterproof coatings: different in nature. Different in waterproof coatings, the difference between “one-component†and “two-component†is that mortars are all two-component polymers, ie, they are made of emulsion and mortar. Ester and polyurethane are single-component without mortar.
In addition, the drying speed of these paints is affected by the climate, and the drying speed is slower in a cool climate, but the weather 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.
Pond Fountain,Large Water Fountain,Gradient Music Fountains,Square Small Fountain
Guangzhou Dewy water fountain Technology Co., LTD , https://www.dewywaterfountain.com