Judging whether the waterproof quality of the bathroom is passed, the quality of the waterproof coating for the bathroom will be checked first. There are usually two types of waterproof materials for the home on the market. One is liquid waterproof coating, polyurethane waterproof coating and polymer composite waterproof coating. The other is a powdery waterproof plugging material, such as waterproof rubber powder and plugging spirit. How do consumers choose the right bathroom waterproof material to ensure that the waterproof layer at home is safe?
Bathroom waterproof coating introduction
Liquid waterproof coating mainly refers to polyurethane waterproof coating, tar type and non-tar type. Non-tar type coatings are the most commonly used waterproofing materials on the market. It uses a non-tar type material as a curing agent, such as a curing agent composed of asphalt, additives and fillers. Such waterproof coatings are divided into two groups: Group A is a curing agent, and Group B is the main component of the material. The material has stable quality, low pollution, good aging resistance, good adhesion and water absorption.
Non-tar type waterproof coatings are mainly used for waterproofing the bathroom and kitchen floors. The group A and the group B can be uniformly mixed with the diluent before use, and then the coating can be applied on the treated substrate. At the same time, it is necessary to moderately grasp the thickness of each painting during construction, generally more than two millimeters can meet the requirements of waterproofing. After the test water is ensured that it does not leak, the cement mortar protective layer must be made on the waterproof layer to prevent the sharp object from piercing the waterproof film to form water leakage in the subsequent construction.
Bathroom waterproof coating selection skills
(1) According to the local maximum temperature and minimum temperature, flexible choice of waterproof coating suitable for heat resistance or low temperature flexibility. In high temperature areas, waterproof coatings with high heat resistance should be selected to prevent runny; in cold regions, low temperature flexible waterproof coatings should be selected to avoid cold and brittle. (2) According to the degree of deformation of the foundation, structural form, local annual temperature difference, daily temperature difference and vibration factor, waterproof coatings with appropriate tensile properties should be selected. For building roofs with large structural deformation, waterproof coatings with large elongation should be selected to adapt to deformation, such as Leibangshi's flexible JS waterproof coating.
(3) According to the exposure degree of the roof waterproof coating film, the waterproof coating with the resistance to UV and heat aging should be selected. For exposed roofing, UV-resistant waterproof coatings should be used to increase the service life.
(4) When the roof drainage slope is greater than 25%, it is not advisable to use a waterproof coating with a long drying time.
It is necessary to use a combination of two materials:
When consumers purchase non-tar type waterproof coatings, they must be purchased together and mixed. At present, non-tar-type waterproof coatings occupy a large share of the market, and domestic famous brands have specialty stores, which are easy for consumers to buy.
Professionals remind: consumers should not forget to buy a certain amount when buying non-tar waterproof coatings. Due to different manufacturers, the internal ingredients are not necessarily the same. The amount of thinner should be determined according to each brand. Most of the thinner is in bulk and the quality is difficult to control. The non-tar type waterproof coatings of regular manufacturers are sold in a set of three barrels. The thinner manufacturers have already been equipped, and there are many different grades of products to choose from. Consumers can choose according to their own economic strength and decoration grade. .
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