Polyurethane waterproof coating is suitable for roof, bathroom, basement, reservoir and wall.
Polyurethane waterproof coating is a one-component polyurethane waterproof coating formed by addition polymerization of isocyanate and polyether, catalyst, anhydrous additive, anhydrous filler and solvent.
Polyurethane waterproof coating is a kind of reactive curing coating with high strength, large elongation and good water resistance. Strong adaptability to foundation deformation. Curing after contact with moisture in the air, forming a strong and tough seamless integral protective film on the surface of the substrate.
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Precautions for waterproof coating construction:
1, try not to destroy the original waterproof layer. Newly delivered buildings are generally waterproof on the ground. Under the condition of not destroying the original waterproof layer, there is generally no leakage.
2. The resurfaced floor tile should be waterproof. If it is necessary to replace the original floor tiles in the bathroom, after the original floor tiles are chiseled, the ground must be leveled with cement mortar first, and then waterproof treatment is carried out to avoid leakage caused by uneven thickness of waterproof coating.
3. The joint between the wall and the ground and the joint between the sewer and the ground are the most prone to problems. Workers must be urged to deal with these edges and corners, and waterproof coatings must be applied in place.
4. Be sure to make the wall waterproof. Waterproofing should be done before sticking the wall tiles. In general, the waterproof height of the wall is 30 cm, but the overall waterproof height of the non-load-bearing lightweight wall is at least1.8 m.
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