Water-based polyurethane waterproof coating

Water-based polyurethane waterproof coating
Water-based polyurethane waterproof coating is a one-component polymer liquid reaction-curing elastic waterproof coating material. This product does not contain solvents, is cold-applied, non-toxic and odorless, has good bonding and impermeability, and has strong adhesion to cement and concrete base stone and metal products. The chemical properties of the product are stable and can withstand sunlight for a long time. Irradiation, high strength, high elongation, good elasticity and good waterproof effect. After the coating film is cured, a dense, strong and flexible waterproof coating film can be formed on the base layer. It has high tensile strength, excellent elongation, strong adaptability to base surface deformation, and low temperature performance. It is good, and the construction of water-based polyurethane waterproof coating is extremely simple, without any pollution, and has the advantages of high performance and wide range of functions. The product has excellent elasticity, outstanding outdoor durability and UV resistance, and is suitable for roofing and direct exposed waterproofing projects. The production technology is at the leading level in the country and it is a replacement product for solvent-based polyurethane.
1 Product Features
Single-component packaging, cold construction, safe and simple, short construction period. Water can be added during construction and it is a polymer curing product.
It can be applied on wet (no clear water) or dry base surfaces. It has strong adhesion to the base layer and the coating film has wide adaptability to the base layer.
It has strong adhesion to concrete, masonry, mortar, metal, wood, glass, ceramic, plastic insulation layer, etc.
Green and environmentally friendly, solvent-free, non-toxic, odorless and no pollution to the environment. It can be used in drinking water engineering and food contact engineering.
The coating film has high tensile strength, large extensibility, good integrity of the waterproof layer, and strong ability to adapt to cracking and deformation of the base layer.
Super strong adhesion, high solid content and high specific gravity. Water-based polyurethane waterproofing materials are small in volume per unit area and highly cost-effective.
Excellent cold resistance, heat resistance, chemical corrosion resistance, aging resistance and mildew resistance.
Outstanding outdoor durability and UV resistance, suitable for steel structure roofs and directly exposed waterproofing projects.
2. Implementation standards/polymer emulsion building waterproof coating
3. Scope of application
Widely used in waterproofing and moisture-proofing projects for new and old roofs, color steel tiles, basements, tunnels, bridges, culverts, civil air defense and other projects, and can also be used for metal pipes Anti-corrosion of workshop floor pools, etc. and bonding of wooden floors, cement boards, asbestos products, fiberglass products, ceramic products, floor tiles, etc. It can also be used as caulking sealing material for building structures.
Plane and facade internal and external walls, planted roofs and direct exposed waterproofing projects.
Waterproof sealing of interior and exterior walls in bathrooms, kitchens, bathrooms, balconies, window sills.
Various types of color steel joints for industrial and civil use, high strength, light load and waterproof for large-span awnings.
Various drinking water pools, underground fire-fighting pools, sewage treatment pools and waterproofing projects with poor ventilation conditions, etc.
Crack repair in buildings, waterproof sealing of expansion joints and cavities.
Four usage methods
The base layer must be smooth, dense, free of oil, sand and open water.
Defects such as cracks in the base layer should be repaired first, and areas such as yin and yang angular deformation joints should be treated with reinforcement layers.
The metal surface layer needs to be rust-removed and polished, and a layer of anti-corrosion and anti-rust treatment agent is pre-coated.
Use a rubber scraper or roller brush to apply the water-based polyurethane waterproof material with even coating on the base surface. The coating thickness meets the design requirements and there should be no leakage, bulging or delamination.
The drying time of the coating is about an hour at room temperature. The interval between each application shall be based on the non-stickiness of the hands. For general brushing, the recommended dosage/㎡ and the thickness are about 50%.
Five Precautions
The product should be sealed and stored in a ventilated and dry place, and the storage temperature should be above.
During the construction of the coating film, you should be strictly protected from rain and water. It is strictly forbidden to walk on the waterproof layer before it is dry.
To prevent sharp objects from damaging the waterproof layer, the waterproof layer of non-leaking decorative parts should be constructed with a protective layer of water-based polyurethane waterproof coating.