With the development of the market economy, my country's steel industry has made rapid development in terms of quantity and quality, laying a solid foundation for other industries, especially the construction industry. The pattern of building materials with bricks, tiles, gray, and stone as the main materials has been changed, and steel-framed and color-slab structures have appeared. The emergence of this building structure has made power plant steam turbine workshops, automobile manufacturing, aircraft manufacturing, large-scale factories, large-scale supermarkets, and logistics warehouses widely used. The biggest advantages of this kind of building structure are short construction period, light building materials, low foundation requirements, large span, large indoor space, and convenient use. But there are also certain problems. The main problem is: leakage in the roof, rivets, and board seams, which affects normal use. As a professional waterproof plugging company, Zhengzhou Jiujiu Waterproof Plugging Engineering Co., Ltd. has summarized a set of effective methods for repairing water seepage in large-scale color steel sheet roofs through research, testing and construction. The company uses the "Large Color Steel Roof Leakage Repair Method" in large power plants and other industries to achieve good results. The specific method is as follows:
1. Repair method for water leakage at rivet:
Apply Sunshine 2000PA one-component waterproof glue for 4 times, the thickness is about 1.5mm, the diameter is about Φ60mm, and the previous coating is applied next time
Hand is not sticky, and the diameter is larger than Φ15mm, which is thick and thin in the middle.
2. Repair method for water leakage at the joint of the board:
1. Repair method for small joints:
①Brush 60㎜Sunshine 2000PA one-component waterproof glue on both ends of the seam, and do not apply it to the adjacent 20㎜ of the seam.
②Non-woven fabric (or glass fiber cloth), the width of the fabric is 150 mm, and it is pasted on the top of the Sunshine 2000PA waterproof glue.
③Spread 3 times on the non-woven fabric or glass fiber cloth. The latter one is 50mm wider than the previous one and the thickness is about 1.8mm. The last time the coating does not stick to the hands after the last application.
3. Maintenance method for large board joints:
① DM-600 sealer PU sealant can be filled into the seam
②Spread 60mm Sunshine 2000PA one-component waterproof glue on both ends of the seam, and do not apply 20mm near the seam.
③Non-woven or glass fiber cloth, width 150mm, pasted on top of Sunshine 2000PA waterproof glue.
④ Apply Sunshine 2000PA one-component waterproof glue 3 times on the pasted cloth. When painting, the next time is 50mm wider than the previous one, and the thickness is about 1.8mm, which is thick in the middle and thin on both sides. The last time the coating does not stick to the hands after the first application.
PA one-component waterproof glue
One-component water-based viscous liquid.
High strength, high elongation, good flexibility.
UV resistance and good weather resistance.
Solvent-free, aldehyde-free, non-toxic, and can be used in drinking water projects.
Excellent affinity bonding force with cement, metal, wood and other building materials.
It is suitable for waterproof and anti-seepage on the surface of concrete and metal roof, and is used on the water surface.
High elongation, good elasticity, strong ability to resist base layer deformation, can shield cracks, waterproof and breathable.
High bonding strength, strong adhesion, good overall waterproof effect.
It can be constructed on a variety of wet or dry base surfaces. The one-component construction is simple and the tools are easy to clean.
Good high and low temperature resistance, acid and alkali resistance, and corrosion resistance.
Polyacrylate emulsion, pigments, fillers and additives.
The waterproof layer of building roof or the covering layer of other waterproof materials on the roof.
Color steel plate roof and wall joints are waterproof and sealed.
Repair or renovation of old building roofs.
Internal and external walls, and bathroom walls are waterproof.
Tennis courts and other sports grounds.
Seal the gap between doors and windows and the building.
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