Grouting materials of ultra high strength cracks with polyurethane 
 DM-520 
 Feature 
 A two-component, room temperature reaction curing, curing speed, curing can be 1 ~ 2min. 
 (2) strength of up to 30 ~ 50MPa. 
 With excellent hydrophobic properties, chemical stability. 
 4 has a larger radius of penetration, the pressure to push the slurry to the proliferation of crack depths, the formation of the concretion body of tough high-strength, both the water shut off can be reinforcement. 
 Acid, alkali, salts and many organic solvents, good chemical resistance. 
 6. Excellent and the concrete base and other building materials bonding properties. 
 Grouting adhesive curing speed according to project needs adjustment. 
 Recommended for 
 Ports, docks, piers, dams, hydropower stations curtain, tunnel, mine roadway filling plugging and reinforcement. 
 2 pool, water tower, the basement of the shelter buildings, such as crack filling, sealing, waterproof anti-corrosion and reinforcement. 
 The construction work of deformation joints, construction joints, plugging and reinforcement of structural cracks. Roof waterproofing, crack grouting, tunnel plugging grout, wall grout waterproof elevator shaft plugging the cable trench with water plugging. Leaking windows plugging 
 4 concrete cracks> 0.1mm perfusion closed bond and enhance the repair and building materials. 
 Typical performance indicators 
 Appearance: light yellow or brown transparent viscous liquid 
 Density: 1.05 ~ 1.1g/cm3 
 Viscosity ≤ 1000mpa.s 
 Induced gelation time 1 ~ 3min 
 Non-volatile matter content ≥ 90% 
 Compressive strength: 30 ~ 50MPa 
 Construction 
 (1) to identify the leakage point, the leaking parts of cutting hair, clean up; 
 (2) drilling hammer drilling aperture of 10 mm or 14 mm. 
 (3) DM-410 impermeability on the 1st embedded grouting nozzles, spacing according to the actual situation is generally 200 mm to 300 mm; 
 (4) pump pressurized water into the gap, to understand collusion and stop sealing effect between each hole leaks re-closed, where water consumption can be used as a serous amount of reference; 
 (5) two-component electric grouting machine or manual grouting pump grouting stanch gum after high-speed mixing from the grouting Tsui (waterstop needle) into the concrete cracks in the facade from the bottom, after 24 hours remove grout Tsui, closed with the impermeability of the 1st (waterproof); 
 (6) This product has been added to the catalyst, can meet the needs of the general construction, if you want to accelerate the curing speed, the scene of small addition of catalyst 
 This product is iron drum, 16kg / barrel; 
 Store in a cool dry place, shelf life of 12 months.