Railway bridge with high strength polyurethane waterproof coating manufacturer ex-factory price

Railway bridge with high strength polyurethane waterproof coating Product Description HC-37 railway bridge with high strength polyurethane waterproof coating is developed in China meet and exceed the target iron special polyurethane waterproof coating. Performance characteristics superior stretchability and high elongation, and good combination force base, with concrete can be deformed? Excellent low temperature performance and impermeability, abrasion, acid and alkali resistance. ? Do not add solvents construction, safety and environmental protection, rapid curing, fully meet the construction schedule? Railway ministry science and technology-based performance standards (2007) No. 56, "Railway Bridge in concrete bridge deck waterproofing layer Interim technical conditions (Revised Edition)" use of railway concrete bridge deck waterproofing, other important water projects. ? Construction Points use Primary treatment: pre-construction should be grass-roots clean-up, cleaned, to have cellular, primary pitted surface with water and mortar, cracks, defects repair dense;. Ingredients: in strict accordance with the specified mixing ratio A, B components and stir with an electric mixer, for about 1-2 minutes;. Waterproof coating layer: should be divided over the coated polyurethane waterproof coating, to be applied first coating dry film, only after the application again. Front and rear direction of the coating should be perpendicular to each other. . Processing received the first waterproof layer: the use of plus or two times painted again be sealed polyurethane coatings;. The protective layer: waterproof layer coating after completion of the acceptance of qualified, according to the design protection layer construction. Note construction temperature 5 ℃ -35 ℃ appropriate, rain and snow can not construction, construction in the film six hours to avoid showering;. Before the film is not hard work, and we need to protect, it is strictly prohibited to walk on the waterproof layer, and timely protective layer: A, mix B component, it should be used up as quickly as possible, for not more than 20min; barrel after opening the unused A? , B component should immediately cover closed, avoid long time directly exposed to the air, to prevent self-polymerization;. Construction workers must wear protective clothing when construction necessary to avoid direct contact with the skin paint;. The construction site must keep the air circulating. Transport and storage? Transportation and storage, avoid the sun and rain to prevent the collision, extrusion, pay attention to ventilation, storage temperature should not exceed 40 ℃. Under normal storage and transport conditions, shelf life of 12 months. Packing. A, Group B parts are 20kg / barrel