Polymer waterproof coating
Formulated primarily from polymeric materials and additives, it prevents moisture penetration into walls, protects the wall structure, and enhances the wall’s durability.
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Polymer waterproof coating
Formulated primarily from polymeric materials and additives, it prevents moisture penetration into walls, protects the wall structure, and enhances the wall’s durability.
Performance Metrics
Appearance: Uniform, fine emulsion (or paste), free of clumps, delamination, and sediment.
Solid content: ≥45%
Surface drying time: ≤2 h, through-drying time: ≤24 h
Tensile strength: ≥1.5 MPa
Elongation at break: ≥300%
Bond strength: ≥1.0 MPa (to concrete and cement mortar substrates)
Water resistance: After 96 hours of immersion, no bubbling, cracking, or delamination; strength retention ≥ 80%.
Alkali resistance: No abnormalities after 48 hours of immersion; strength retention ≥ 70%.
Low-temperature flexibility: No cracks at −20°C (in compliance with GB/T 19250)
Waterproofing: No leakage
Scope of Application
Building roofs: waterproofing and moisture-proofing for flat roofs, sloped roofs, and green roofs.
Kitchen and Bathroom Spaces: Waterproofing of floors and walls in bathrooms, kitchens, and balconies to prevent leaks.
Exterior walls: Waterproof sealing of wall surfaces, window and door openings, and internal and external corners to prevent rainwater infiltration.
Foundation Engineering: Waterproofing and impermeability for basements, underground parking garages, tunnels, and civil defense structures.
Other applications: waterproofing for new and existing building renovations, sealing pipe penetrations, crack repair, and roof leak repairs.
Product Advantages
Outstanding waterproof performance: The coating film is dense and highly elastic, accommodating minor substrate movement while effectively resisting rainwater and groundwater infiltration, thereby eliminating the risk of leaks.
Strong adhesion: It bonds firmly to a variety of substrates, including concrete, cement mortar, ceramic tiles, and stone, resisting delamination and hollowing, with broad compatibility.
Flexible crack resistance: Possesses excellent elongation and flexibility, enabling it to accommodate minor cracks caused by substrate shrinkage and settlement, and is highly resistant to cracking.
Environmental safety: Water-based formulation, low VOCs, non‑toxic and odorless, free of formaldehyde, benzene‑related compounds, and other harmful substances; safe and environmentally friendly during application and use, suitable for a wide range of indoor and outdoor settings.
Easy to apply: Can be applied by roller, brush, or spray; simple to use, requiring no complex equipment; short construction time, high efficiency, and convenient for repairs.
Weather and durability: UV-resistant, capable of withstanding extreme temperatures, and resistant to aging; it is less prone to chalking and cracking, resulting in low long-term maintenance costs.
Excellent compatibility: It seamlessly integrates with waterproof membranes, waterproof mortars, tile adhesives, and other materials to form a composite waterproofing system, enhancing overall waterproofing performance.
Instructions for Use
1. Substrate Preparation: The substrate must be solid, smooth, and clean, free of loose dust, oil stains, delamination, and sanding. Cracks and voids shall be filled and leveled in advance with repair mortar. The substrate moisture content shall not exceed 10%, and internal and external corners shall be rounded to a radius of 50 mm to facilitate coating film formation.
2. Primer Application: Dilute the waterproof coating according to the specified ratio (typically 1:1 with water), mix thoroughly, and apply a uniform coat using roller or brush application to enhance adhesion between the coating film and the substrate. Allow the primer to dry completely before proceeding with the topcoat.
3. Topcoat Application: After the primer has dried, apply the topcoat in 2–3 coats, maintaining a coat thickness of 0.5–0.8 mm per pass. Allow at least 4 hours between coats (based on complete drying), and ensure thorough coverage to prevent missed areas or sagging. The total coating thickness shall be no less than 1.5 mm.
4. Reinforced Treatment: At vulnerable areas prone to leakage—such as internal and external corners, pipe penetrations, and floor drains—first apply a layer of waterproof non-woven fabric or fiberglass mesh, then coat with waterproof paint to provide enhanced protection.
5. Curing of Finished Products: After construction is completed, allow for natural curing for at least 72 hours, avoiding foot traffic, direct sunlight, and exposure to rain. Only after curing is complete may subsequent operations—such as tile installation or plastering—be carried out.
6. Construction conditions: Temperature 5°C–35°C, relative humidity ≤85%; construction is prohibited in rainy weather, during strong winds, or under low‑temperature and high‑temperature exposure.
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