1, looking for cracks: For the wet grass, the first water cleaning knot until all clean grass, the surface is slightly dry, carefully looking for cracks with crack colored pen or chalk along well marked; For dried grass, can be used to clean up after the pump or blower blowing dust on the surface. 2, Drilling: according to the structure of concrete thickness from cracks about 150 ~ 350mm, cross-drilled along both sides of the crack direction. Pitch should be the actual situation may be, after two holes in grout cracks can interchange the principle generally started when the pitch is preferably 300mm; pore size, supporting the sealing needle size should be, 13mm drill bit using a non-subject. Holes and cracks in cross-section should be 45 degrees to 60 degrees cross and intersect at 1/3 the range of the middle floor. 3, buried the needle sealing: sealing the needle as supporting parts, is injected into the slurry connection cracks within the application when buried fastening tools, and to ensure the rubber part of the wall of the hole in the needle and dried before use, otherwise fastened When prone to slipping. 4, seepage / reinforcement of the drilling, locking the needle, the agents poured into the cup, turn on the power switch, the cup and tube extrusion residual detergents or lubricants, spray up until the pharmacy, and then insert the needle, The drug injected into the body of oily polyurethane injection slurry wall, stanch, reinforcement. Specifications edit a .. Drill 14mm: A-8, A-10, A-15 Polyurethane, A-20, A-25, A-30 Other specifications can be customized. 2 .. drill 10mm B-8, B-10, B-15, B-20, B-25 B-30 Other specifications can be customized. The scope of application to edit a subway, tunnel, culverts, sewage treatment pond, concrete cracks leak water, with water plugging. 2 basements, underground garages, underground tunnels, concrete cracks leak water of polyurethane grout, with water plugging. 3 roof concrete slab cracks, wall pipe, wall, leakage of water, with water plugging. 4. Concrete structures, beams, columns, structural cracks panels, high-pressure injection of epoxy resin. 5 secondary seams, cracks, seepage and other top Sakamoto stanch, beams, walls epoxy reinforcement. 7 Common auxiliary machinery equipment and materials 4, one-component polyurethane: indoor and outdoor use, brushing is very thick, about 3 mm, and more than 300 percent in the bomb tension, very elastic, crack will not make any substrate cracking waterproof best. Although the safety performance requirements of environmental control in the column, but such a large waterproof paint smell, it is generally difficult to accept, but very few brands of the environmental performance of non-compliance. Polyurethane gel-like, very thick, you need to use the construction scraper, very strenuous, more complicated. After brushing the surface treatment coating is required, nap or raise the sand to increase the friction, ease of tiling. These paint drying rate affected by climate, in cold climates tide drying speed is relatively slow, but the weather did not affect the waterproof effect. In general, the drying cycle of 24 hours mortar class, acrylic and polyurethane for the drying period of 24-48 hours. "Single component", "two-component" differences: mortar classes are two-component polymer, ie the ratio of the emulsion and the mortar is made; acrylic and polyurethane without mortar mixing polyurethane waterproof coating, is a single component. Second, according to the type of coating and the coating film by main ingredient classify substances can put waterproof coating types are solvent-based, water emulsion, the reaction type three. 1. Solvent-based waterproof coating in such coatings. As the main film-forming polymer substance is dissolved in an organic solvent, to form a solution. Polymer materials stored in the molecular state solution (paint) in; such coatings have the following special features: volatile solvent through, after contacting the molecular chain of the polymer material, such as processes lap conjunctiva; paint dry fast, thin and dense conjunctiva ; the production process is relatively simple, good paint storage stability; flammable, explosive, toxic, production, pay attention to the safe storage and use; due to the fast evaporation of the solvent, the environment pollution during construction. 2 water emulsion waterproof coating polymer materials such as waterproof coating film forming materials to tiny particles (molecules instead was state) stable suspension (rather than dissolved) in water emulsion coatings become. Polyurethane waterproof coating _ Jilin polyurethane waterproof _ Hang Jian Bo Jing Jing is provided by Hang Jian Bo waterproof. If you have any questions about this information or consultation, please contact us now! Our Company Name: Beijing Beijing Heng Jian Bo Waterproof Materials Co., Ltd. (www.hjbjfs.com/) Contact: Bit manager, or click on "Business League call" direct dialogue with us!