Caberry 911 Two-Component Polyurethane Waterproof Coating

I. Product Introduction

II. Core Selling Points

1. Eco friendly polyurethane coating: Non-tar type, does not contain toxic solvents such as benzene, toluene and xylene, no coal tar components, no pungent odor, meets national environmental protection standards, safe and harmless for construction;
2. Super elasticity: Elongation at break ≥450%, tensile strength ≥1.9MPa, can cover fine cracks below 2mm, excellent crack resistance, strong ability to adapt to base expansion and deformation as high elasticity polyurethane coating and crack bridging polyurethane coating;
3. Chemical reaction curing: Not affected by environmental humidity, can be cross-linked and cured at room temperature, forming a tough rubber film, excellent puncture resistance, water resistance, corrosion resistance and cold resistance as elastomeric polyurethane coating;
4. Strong adhesion: Firmly bonded to various substrates such as concrete, metal, wood and asbestos tiles, the polymer substances in the coating film can penetrate into the fine cracks of the base surface, with strong followability;
5. Convenient construction: Cold applied polyurethane waterproofing method, safe operation, liquid construction, suitable for large-area seamless construction of various shape interfaces, short solidification period, combining bonding and waterproof functions into one;
6. Dense coating film: Can be thickly coated, the coating film is dense, no bubbles, no pinholes, small water vapor permeability coefficient, with both waterproof function and gas barrier function as seamless waterproof coating;
7. Good weather resistance: No flow at high temperature, no cracking at low temperature (no crack when bent at -35℃), excellent anti-aging performance, resistant to oil, wear, ozone, acid and alkali erosion as low temperature flexible polyurethane;
8. Wide application range: Can be directly constructed on various wet or dry base surfaces, especially suitable for underground engineering where the base is difficult to dry, adapting to waterproofing of various complex nodes;
9. Easy maintenance: Only need local maintenance at the leakage place to restore the original waterproof effect, no need for overall rework, reducing later maintenance costs, suitable for polyurethane coating for renovation.

III. Application Scenarios

• Roof engineering: Concrete flat and sloped roofs, gutters, canopies, especially anti-seepage of irregularly shaped roofs, the first choice for non-exposed roof waterproofing as roof waterproofing polyurethane;
• Underground engineering: Basement concrete floor, internal and external walls, tunnels, elevator pits, open caissons, pipes and other underground maintenance structure water-facing waterproofing, including polyurethane coating for tunnel;
• Civil buildings: Waterproofing of wet areas such as bathrooms, kitchens, balconies and downpipe outlets, adapting to various scenarios of home decoration and engineering decoration;
• Special engineering: Waterproofing of water-facing surfaces such as non-edible water pools, swimming pools, civil air defense projects and storage tanks, rust prevention and anti-corrosion treatment of sewage pools as swimming pool waterproof coating;
• Industrial buildings: Waterproofing of roofs of concrete, wood, steel, asbestos tiles and other structures, waterproofing of heavy-duty areas such as parking lots and warehouses as industrial polyurethane waterproofing;
• Municipal infrastructure: Waterproofing projects of large-scale infrastructure such as bridges, subways and dams, adapting to complex nodes and areas with 纵横 pipes, including polyurethane coating for bridge;
• Repair engineering: Waterproof renovation of old buildings, local leakage repair, extending the waterproof life of buildings by more than 30%.

IV. Technical Parameters

V. Construction Method

1. Substrate Treatment: The construction surface is required to be dry, solid, flat, free of dust and oil, with moisture content <8% (tested by 1㎡卷材 coverage method, no watermark after 4 hours). Internal and external corners should be made into circular arcs, with internal corner diameter >50mm and external corner diameter >10mm, and low-lying damaged areas must be filled and smoothed. This is an important prerequisite for liquid applied polyurethane waterproofing performance.
2. Mixing & Stirring: Strictly weigh according to component A: component B = 1:2 (or package label), use electric mixer, stir for 3-5 minutes until the color is uniform, no streaks and no bubbles. Let stand for 3 minutes to defoam before use, and the mixed coating should be used up within 20-30 minutes. It is a high-quality high tensile strength polyurethane coating.
3. Node Reinforcement: At pipe roots, internal and external corners, cracks, first apply a layer of coating, then lay non-woven fabric or glass fiber mesh to make "one cloth two coats" reinforcement layer, and paste glass fiber cloth on weak parts to increase strength.
4. Layered Coating: Usually carried out in two coats. The first coat is thin (0.5-0.8mm) to penetrate into the base pores and seal the base. After the first coat is surface dry (not sticky, about 6-8 hours), apply the second coat, with the direction perpendicular to the first coat. Total thickness: wall ≥1.2mm, ground ≥1.5mm. It is also suitable for bulk polyurethane waterproof coating procurement for engineering projects.
5. Protective Layer Construction: To increase the bonding force between the waterproof layer and the protective layer, sprinkle coarse sand or fine stone rice on the surface before the last coat is cured, which can strengthen the bonding between the protective layer and the waterproof layer. No stepping is allowed within 24 hours after construction, and the cement mortar protective layer should be made immediately after all waterproof layers are completely dry.
6. Water Ponding Acceptance: 48-72 hours after completion (depending on temperature), conduct 24-48 hours water ponding test, no leakage is qualified. It is also an excellent polyurethane waterproof membrane for long-term protection.

VI. Packaging & Storage

• Packaging Specification: 24kg/set, 30kg/set sealed iron drum packaging (component A + component B), supporting engineering customized packaging, suitable for bulk polyurethane waterproof coating procurement for engineering projects;
• Standard Color: Black (after mixing), other colors can be customized according to demand;
• Storage Condition: The product should be stored in a ventilated and cool place, sealed, prohibited from approaching fire sources, storage temperature 5℃-35℃, avoid direct sunlight and low-temperature freezing;
• Shelf Life: 12 months in original sealed package, can be appropriately extended under good storage conditions without opening;
• Transportation: Prevent collision, sun and rain during transportation, regarded as non-flammable goods, can be transported as ordinary goods, pay attention to keep the packaging intact, strictly prohibit contact with water.