liquid coil
This exposed-grade liquid membrane (a polymer-modified asphalt waterproof coating) is a single-component, water-based, highly elastic, and UV-resistant material designed for seamless waterproofing applications directly exposed to the elements. Unlike standard black liquid membranes—which are unsuitable for exposure and prone to chalking—this product incorporates specialized UV-resistant, weather-stable additives and a high-polymer elastic system. It withstands long-term direct sunlight without requiring protective layers like mortar or tiles, making it the ideal choice for roof renovations, outdoor waterproofing, and sealing complex structural joints.
Ready to use straight from the container and applied cold without open flames, the product cures into a monolithic, seamless rubber-like waterproof membrane. It offers high elasticity, crack resistance, strong self-healing capabilities, and durability against temperature extremes and aging; it does not chalk or fade, effectively resolving issues such as roof cracking and leakage, old roof repairs, and leaks in gutters or balconies.
Key Product Advantages (vs. Conventional Liquid Membranes)
– Suitable for direct exposure: UV-resistant and anti-aging; withstands long-term outdoor use without chalking, cracking, or peeling—no protective layer required.
– Exceptional elasticity and crack resistance: High elongation bridges hairline cracks in the substrate and accommodates thermal expansion and contraction of the roof.
– Seamless, monolithic waterproofing: Forms a continuous coating without overlap seams, eliminating leakage risks associated with membrane overlaps.
– Safe, eco-friendly cold application: Water-based and odorless; requires no open flames and emits no harmful vapors during application—suitable for projects ranging from older residential complexes to color-steel roofing.
– Superior adhesion: Bonds firmly to substrates including concrete, cement mortar, old roofing membranes, color-coated steel sheets, and stone.
– Self-healing waterproofing capability: Automatically seals and repairs minor punctures and cracks, ensuring greater waterproofing stability.
Scope of Application
Suitable for various outdoor waterproofing projects, including roofing for all types of buildings, complete renovation of existing roofs, waterproofing of terraces and balconies, gutters and eaves, parapets, pipe penetrations, complex junctions (such as internal and external corners), exposed waterproofing for garage roof slabs, and sealing of lap joints on color-coated steel roofing.
| Test Item | Technical Standard Specifications |
|---|---|
| Appearance State | Colored milky liquid (Red/Gray/Blue), no caking, no stratification |
| Solids Content | ≥ 45% |
| Tensile Strength | ≥ 1.0 MPa |
| Elongation at Break | ≥ 600% (Ultra-high elasticity, excellent crack resistance) |
| Low-temperature Flexibility | -20°C, no cracks |
| Heat Resistance | 80°C, 2h: No flow, no slippage, no blistering |
| Water Impermeability | 0.3MPa, 120min, no leakage |
| Bond Strength | ≥ 0.4 MPa |
| UV Weathering Resistance (Core index for exposed use) | No chalking, cracking, peeling or fading under long-term outdoor exposure |
| Surface Dry Time (25°C) | ≤ 2 hours |
| Through Dry Time (25°C) | ≤ 12 hours |
| Construction Ambient Temperature | 5°C ~ 35°C |
| Recommended Application Thickness | 1.5mm ~ 2.0mm (Standard thickness for exposed roof surfaces) |
| Theoretical Consumption | Approx. 2.5kg/m² (for 1.5mm cured thickness) |
| Standard Colors | Red, Gray, Blue (Customizable) |
| Packaging Specification | 20kg/drum |
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