High Elastic Rubber Waterproof Coating is also Called "Four Not Fear" High Elastic Skin Type Rubber Waterproof Coating
Nov 13, 2020
Because it looks like asphalt, it is also called high-elastic rubber asphalt waterproof coating. It is called "Four Not Fears" because it is not afraid of water leakage. , Not afraid of aging, not afraid of cracking and deformation, not afraid of puncture. The knife is pierced into the paint and then pulled out. The knife edge is quickly healed and does not leak, and it can be elongated by 20 cm by 1 cm. The deformation capacity is 20 times the original, and the adhesion force is four times that of cement.
Scope of application
1. Suitable for roofing, underground waterproofing and industrial anti-corrosion protection projects, etc.
2. Waterproof and anti-seepage projects of various ground and underground concrete structures and other foundations
3. Waterproof and protection engineering of subways, tunnels, roads and bridges, large pools
4. Industrial buildings and chemical equipment: anticorrosion and rust prevention such as large gas storage tanks
Features
1. Ultra-high flexibility
The elongation of the elastic coating film can reach more than 2000% of itself, and the recovery rate can reach more than 95%. Therefore, it can effectively solve the problems of leakage and corrosion caused by stress deformation, expansion and cracking, puncture or weak connection of various structures.
2. Super weather resistance
After the polymer liquid rubber is formed into a film, it will not be affected by the temperature, will not be brittle under the cold climate conditions of -35℃, and will not flow under the high temperature conditions of 140℃.
3. Excellent adhesion
It can be attached to the surface of concrete, light brick, PVC board, galvanized board, mineral wool board, SBS double-sided film, ceramic tile, glass, aluminum board, extruded board, geotextile, steel, wood, etc., without layer , Does not peel off, does not fall off, and has a good protective effect on the base layer;
4. Creep resistance
Polymer liquid rubber eliminates the influence of base layer stress on the waterproof layer through its own flexible creep. When the deformation coating of the base layer is stretched, the creep of the bonding layer can release the stress, and the waterproof layer will not crack due to the deformation of the base layer and its "zero extension". At the same time, it will not accelerate the aging due to long-term high stress.
5. Self-healing
After cracks, breakages, or punctures occur at the junction of the polymer liquid rubber waterproof layer and the base surface, the film layer will creep toward the cracks or holes to eliminate the internal stress of the film layer at the holes and block the defects , Prevent the passage of water, prevent the phenomenon of "water channeling", and improve the reliability of waterproofing.
6. Anti-channeling water
The prevention of water channeling needs to be solved by full adhesion. Due to the uneven microstructure of the construction base surface, the bonding material of ordinary waterproofing membrane construction can only stick to the protruding parts of the base surface. Although the surface appears to be bonded firmly, in fact the base surface is large and small. They are all channels for channeling water. The polymer liquid rubber waterproof layer constructed by spraying can fully adhere to the base surface.
7. Adhesion to wet base surface
Water-emulsion polymer liquid rubber can be applied on the wet base surface without clear water. The polymer chain after spraying and demulsification can stretch out the surface of the micro-porous base layer like a "hook", firmly "holding" the base surface; this fast-setting and slow-cracking electrochemical reaction makes the water-emulsion polymer The liquid rubber infiltrates the surface of the base layer to provide sufficient adhesion between the coating and the base layer.
8. Fast and easy construction
Specialized spraying machinery is used for construction, and it is formed instantly after spraying, and the design thickness can be reached in one spray, saving labor, and greatly shortening the construction period and reducing construction costs. A spraying equipment group of 3-5 people can provide two sets of spray guns for spraying at the same time, and the daily construction capacity can reach 1200m2-1800m2;
9. Perfect covering
The coating can perfectly cover the substrate and realize the seamless connection between the coating and the substrate, so as to achieve the non-water channeling and non-peeling characteristics that are difficult to achieve for the coil. It is more convenient and reliable for the construction of the base layer with special-shaped structure or complicated shape.
10. Environmental protection and energy saving
From the production of raw materials, spraying construction and use, it is non-toxic, odorless, waste-free, no exhaust gas emissions, and pollution-free. It is a new generation of energy-saving, ecological and environmentally friendly materials; during the entire construction process, no heating is required, normal temperature construction, and no open flame , To ensure the safety and reliability of the construction; the use of the latest development trend of the international waterproofing industry-single-layer waterproofing materials, not only reduces the amount of building materials, saves resources, but also reduces the construction waste generated during future demolition, and truly saves materials and energy.
11. Flexible painting method
It can be applied by spraying, brushing and scraping, which is flexible and simple. It can meet the special requirements of various environments such as drains, yin and yang angles, and cracked parts for waterproof operations.
12. Functional diversity
Form a perfect film on the base surface, in addition to achieving excellent waterproof performance, it can also achieve various functions such as anti-corrosion, protection, shock absorption, noise resistance, shielding, insulation, and flame retardancy. It can be applied to roofs, basements, subways, Tunnel, bridge, water conservancy and other waterproof and industrial anti-corrosion, protection engineering fields.
Product construction technology
Basic level requirements
1. The cement mortar leveling layer should be solid and smooth, and there should be no looseness, sanding, and peeling.
2. Pipes, embedded parts, equipment foundations, reserved openings, etc. that penetrate the waterproof layer should be buried and installed firmly before the waterproof layer construction.
3. The corners protruding from the base layer should be painted into an arc, and the arc radius should be 50mm.
4. The base layer should be clean, free of floating dust, oil stains and debris.
5. The base layer may be damp, but there must be no clear water.
6. The drainage slope of the base should meet the design requirements.
Construction process
1. Process flow: basic level acceptance-cleaning up the basic level-detail protection-additional layer of detailed structure-large area spraying-quality inspection-quality acceptance (water spray test)-protective layer construction.
2. The additional layer of detailed structure is applied by brushing method, and the carcass reinforcement material should be sandwiched in the middle of the coating, and the pavement should be firm and sticky, without hollowing or warping.
3. Large area spraying high elastic rubber waterproof coating should meet the following requirements:
A. Large-area spraying should be carried out after the base layer meets the construction requirements.
B. Spraying high-elastic rubber waterproof coating should be sprayed evenly and uniformly in thickness. The distance from the spray gun to the spraying base should be 600-800mm, and the 2mm thick coating can be sprayed in a crisscross pattern for 4-5 times.
C. The following requirements should be met when spraying the carcass reinforcement material in the high-elastic rubber waterproof layer:
The paving of the carcass reinforcement material should be carried out after the coating film of the underlying high-elastic rubber waterproof coating is cured.
The thickness of the bottom high-elastic rubber waterproof coating film should not be less than 0.5mm.
The paving of the carcass reinforcement material should be straight, smooth and free of wrinkles. Apply high-elastic rubber waterproof coating on the overlapped area by rolling.
The lap width of the long side of the carcass reinforcement material shall not be less than 50mm, and the lap width of the short side shall not be less than 70mm. The lap joint shall be coated with a thick-build high-elastic rubber waterproof coating, and the lap joint shall be adhered and sealed firmly.
When spraying the high-elastic rubber waterproof coating on the carcass reinforcement material, there should be no defects such as hollow drum, open mouth, and the thickness should not be less than 1.0mm.
4. After spraying high elastic rubber waterproof coating on a large area, quality inspection should be carried out. Check the detailed structure, spray quality, coating thickness, apparent quality, etc., and repair defects in time. Large-area repairs should be sprayed, and detailed structures and small-area repairs should be painted with high-elastic rubber waterproof paint (Type Ⅲ).
Precautions
1. The construction is divided into spraying method, brushing method and scraping method. Spraying method should be used for large-area construction, brushing method should be used to strengthen the treatment of pipe roots, water drop, parapet and other details. The repair of cracks and the construction of parts that are not easy to spray should be scraped.
2. The construction environment temperature of high elastic rubber waterproof coating is 5℃-35℃. No construction is allowed on rainy days, snowy days, and winds above level 5.
●Mechanical airless spraying, single machine with double guns (group of 3) for 8 hours continuous spraying (film thickness 2mm), comprehensive construction area 1200~1800m2
