Jiangong brand metal roof special waterproof coating is a high-elastic polymer waterproof coating developed and produced by Xinjian Gong Waterproof Material Technology Co., Ltd. in Ningde City, Fujian Province, which can be used for exposed use and is refined from pure acrylic acid and high-quality pigments and fillers. High-quality raw materials and special preparation technology give the product extremely strong elasticity, flexibility, water resistance, UV resistance, anti-aging and other functions. After curing and cross-linking, a solid and seamless coating film is formed, supplemented by stitched polyester cloth to form an excellent system , which combines waterproof and protective functions with heat insulation effect. It can be firmly bonded to the surface layer of various base materials, has excellent flexibility, crack resistance, water resistance, weather resistance, outstanding outdoor durability and UV resistance, and is especially suitable for waterproof construction and maintenance of metal roof projects. , providing a complete solution for metal roof lighting panels, protruding roof pipes, fan openings, metal plate lap joints, reinforcing screws, gutters and other waterproof weak parts. It can also be used for directly exposed concrete roofs, asphalt roofs, etc. Other roof waterproofing and repair systems. This product is divided into ordinary type and heat reflective type. Implementation standard "Acrylic High Elastic Waterproof Coating for Metal Roofs"
1. Main features of Jiangong brand special waterproof coating for metal roofs
Outstanding outdoor durability and anti-UV performance, weather resistance and aging resistance
Super strong adhesion, excellent adhesion to some substrates that are difficult to adhere to (such as galvanized sheets, foamed polyurethane), suitable for various metal surfaces, masonry, mortar, concrete, glass, wood, metal, Gypsum, rubber, etc.
Strong resistance to water accumulation, strong acid, alkali and corrosion resistance
Excellent high and low temperature resistance, long-lasting low temperature flexibility, no cracks when folded at ℃
The coating film has high strength, large elongation, and strong adaptability to shrinkage, deformation, and cracking of the base layer
Convenient construction, rapid curing, high efficiency, short construction period, multiple colors, perfectly matching the original color of the metal plate
Single The component water-based paint is non-flammable, non-explosive, non-toxic and harmless, safe to use and an environmentally friendly material.
2. Construction technology of Jiangong brand metal roof special waterproof coating
Metal roofs generally have the following areas that require waterproofing treatment: horizontal lap joints, vertical lap joints, fan openings, protruding roof pipes, air conditioning pipes, The weakest links in metal roof waterproofing are around the lighting panels, roof ridges, gutters, junctions between metal plates and parapets, and screw fasteners.
Before waterproofing a metal roof, preparations must be made. In particular, the rust on the surface of the metal roof requires great attention. Anti-rust work has a very important impact on the success or failure of waterproofing in the later period.
Check the metal roof carefully before construction to ensure that the metal roof is firm, clean, free of rust, and free of frozen matter. The following situations need to be dealt with separately
Loose or rusty parts of the roof must be replaced or reinforced.
If there is rust on the base surface, you need to first apply a water-based metal anti-rust and anti-corrosion paint that does not require manual polishing and rust removal
If there is oil stain, open water, frozen matter, etc. on the base surface, it needs to be cleaned up
Determine the parts that need to be waterproofed and the width of the waterproof layer, and cut the woven polyester fabric of the corresponding width. The width of the waterproof layer, the area of the waterproof layer for screws is generally square meters (). The width of the horizontal lap waterproof layer is 0. The width of the vertical lap waterproof layer is 1. The height of the tile peak depends on the construction requirements.
First, apply a layer of special polymer waterproof material for construction metal roofs at the horizontal overlap of roof panels, the horizontal overlap of metal roof panels, and metal roof protrusions (such as cable anchors, air outlets, fan openings, etc.) , when it is still wet, embed a piece of woven polyester cloth cut to a suitable size and shape into it, ensuring that there is no blistering, wrinkles, or white spots, and then fully paint the surface with paint until it is completely dry. After it is completely dry, apply the special waterproof coating for construction metal roofs all over.
Use a roller brush or brush to apply a large area in the order of the bottom layer and the upper layer of the base layer. If you need to add more stitched polyester fabric, apply it continuously in the order of the lower layer, middle layer and upper layer of stitched polyester fabric. The interval between each layer shall be based on the fact that the upper coating film is dry and non-stick.
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