Paint knowledge | polyurethane waterproof coating price polyurethane waterproof coating detection

Core tip: polyurethane waterproof coating is a one-component polyurethane waterproof coating which is made from isocyanate, polyether and other prepolymer containing isocyanate group by addition polymerization, with catalyst, anhydrous assistant, anhydrous filler, solvent, etc and processed by mixing and other processes This kind of coating is a reaction curing (moisture curing) coating with high strength, high elongation and good water resistance It has strong adaptability to deformation of base course Is polyurethane waterproof coating toxic? Polyurethane waterproof coating is non-toxic Polyurethane waterproof coating is a new polymer multifunctional material The smell of black paint is small This product is famous for its low price and convenient construction Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings: polyurethane waterproof coating is a one-component polyurethane waterproof coating material, which is made of isocyanate, polyether and other prepolymer containing isocyanate group through addition polymerization reaction, with catalyst, anhydrous auxiliary agent, anhydrous filler, solvent, etc processed by mixing and other processes This kind of coating is a reaction curing (moisture curing) coating with high strength, high elongation and good water resistance It has strong adaptability to deformation of base course Is polyurethane waterproof coating toxic? Polyurethane waterproof coating is non-toxic Polyurethane waterproof coating is a new polymer multifunctional material The smell of black paint is small This product is famous for its low price and convenient construction Polyurethane waterproof coating price anticorrosive coating is painted on wooden products in Beijing, 100 yuan per square meter waterproof coating is painted on the ground or wall in Beijing, 80 yuan per square meter polyurethane waterproof coating detection I, paint film thickness inspection; For the inspection of film-forming thickness of paint, three points shall be pricked every 100 square meters by needle puncture method, and the height of paint film shall be measured with ruler, and the average value shall be taken The film-forming thickness shall be greater than 2 mm When puncturing, color pen should be used to mark for repair 2、 Inspection of fracture elongation rate: in the waterproof construction, the supervisor can go to the construction site to brush the mixed materials on the flat glass several times The thickness of film-forming on the plate (the glass plate shall be waxed first) is 1.2-1.5mm After 7 days, it is soaked in 1% alkaline water for 7 days, and then it is dried in an oven at 50 ℃ and 2 ℃ for 24 hours The dumbbell type tensile test is carried out, and the elongation retention rate is required to reach 80% (200% without treatment) If the standard is not up to standard, it is indicated that the proportion of emulsion in the construction is insufficient 3、 Water resistance inspection: paint on the cement block in several times, with film thickness of 1.2-1.5mm, placed for 7 days, immersed in 1% alkali water for 7 days, no stratification, no hollowing is qualified Polyurethane waterproof coating construction process 1 The waterproof base course shall be plastered with 1:3 cement mortar to a 1 / 50 flashing slope according to the design requirements, and its surface shall be troweled and polished, and there shall be no such defects as unevenness, looseness, sand and ash removal The drainage outlet or floor drain shall be lower than the whole waterproof layer, so as to remove the accumulated water The pipe with sleeve shall be more than 20mm higher than the base surface The internal and external corners shall be made into small fillets with a radius of 10 mm for coating construction 2 All pipe fittings, sanitary equipment, floor drains or water outlets must be installed firmly, with tight joints and smooth ends, without any looseness 3 During construction, during the construction of traditional polyurethane waterproof coating, the waterproof base course should be basically dry, and the moisture content should be less than 9% The simple measurement method is to cover the base course with a rubber plate with an area of 1 ㎡ and a thickness of 1.5-2.0mm, and place 2-3 If there is no water mark on the surface of the base course, and there is no condensation water mark on the rubber plate close to the base course, the water content is less than 9% according to experience, which meets the construction requirements The polyurethane waterproof coating produced by Chengmei coating company has no such requirement, as long as there is no open water in the base layer, the construction can be carried out 4 Before construction, the protuberances, mortar lumps and other foreign matters on the surface of the base course shall be removed with a blade and broom, and the dust and sundries shall be thoroughly cleaned The internal and external corners, pipe roots, floor drains and drain outlets shall be cleaned carefully If oil and rust are found, they shall be thoroughly cleaned with wire brush, sandpaper and organic solvent Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,