911 Non-tar polyurethane waterproof coating

911 Non-tar polyurethane waterproof coating I. Introduction: HC-20 911 Non-tar polyurethane waterproof coating is a two component polyurethane polymer as the main chemical reaction type waterproof coating, it is by having an isocyanate group (-NCO) polyurethane pre- mer (Part A) and containing multiple hydroxyl (-OH) curing agent, carbon black, curing agents, preservatives, thickeners, catalysts and other additives made by mixing (Part B) components. A and B were mixed uniformly by a certain percentage, the overall water cured to form a flexible film. Second, the product advantages: 1, does not contain tar, pungent odor small, reducing pollution. 2, cold construction, easy operation, construction safety. 3, liquid construction, room temperature curing, curing time is short, strong bond, waterproof, high impermeability. 4, elongation, cold and heat, corrosion resistance, good anti-aging properties. Roofing 1, various roof waterproofing works, such as concrete, bamboo, wood, steel, tile structure: The Third, the scope. 2, the underground construction waterproofing works, such as the basement concrete floor, interior and exterior, retaining walls, tunnels, wells and pits. 3, waterproof construction of various buildings, such as the bathroom, kitchen, non-food, swimming pools, flower beds, sluice ground, inside of the walls, construction joints, expansion joints, wall pipe, the water vent. 4, adhesive anti-corrosion: bondable wood, cement, asbestos products; and for pipeline external corrosion, corrosion floor, corrosion pool. Fourth, the main technical indicators: Standard: GB / T19250-2003 Testing items Solid content (%) ≥92 Drying time (h) hard work table dry ≤8 ≤24 flexibility at low temperature (℃) ≤-35 no cracks watertight sex (0.3Mpa, 30min) impervious Tensile strength (Mpa) ≥1.90 elongation (%) ≥450 V. Construction steps: 1, the base surface treatment: construction of surface requires a solid, flat, dry, clear water without dust, no oil, low-lying breakage need to fill smooth. 2. Ingredients: According to Part A Materials: Material Part B = 1: 2 ratio by weight, the first material is poured into Part A and Part B is then added to the material in the container, and stir until the black color can use. 3. Construction: The construction material is usually carried out in two passes, will paint mixed with a rubber scraper or brown brush evenly on the base plane, scraping should be repeated several times in both directions perpendicular to ensure paint penetration and bonding base surface, when the first coat is dry curing the second layer can be painted. (If the overlay coating glass fiber cloth or non-woven fabric to better increase its water resistance). 4, the protective layer construction: In order to increase the adhesive force between the waterproof layer and the protective layer in front of the second floor has not been cured coating on its surface sprinkled Coarse or fine stone rice, make a protective layer and waterproof layer bond between the firm. 5, material consumption: 1mm thickness of about 1.2 ~ 1.4kg / m2,1.5mm about 1.7 ~ 2kg / m2,2mm about 2.5kg / m2 VI Notes: 1, such as found in Part B material viscosity is too large (especially construction in winter), is not easy construction, can be added to a small amount of toluene or xylene diluted, added in an amount not greater than 10% Part B material. 2, as do the film bubble generation (usually caused by higher base surface moisture content), should be a place bubbling cut exhaust moisture until dry and then paint repair. 3, the construction temperature should be above 5 ℃, the construction should maintain good ventilation; after coating formulation should be used within 20 minutes. 4, the product should be sealed and stored in a dry, avoid sunlight, rain place, storage period of six months. Seven, product packaging: Product packaging into 30kg / set, 4.5kg / set.