Spraying quick-setting rubber asphalt waterproof coating

Product description

Spray-applied rapid-setting rubber asphalt waterproof coating is a high-elasticity waterproof, anti-corrosive, impermeable, and protective coating film produced by mixing ultra-fine, suspended, microemulsion-type anionic modified emulsified asphalt and synthetic high molecular polymer (Component A) with a special film former (Component B) using a special process. It instantly forms a dense, continuous, and complete waterproof rubber film with high elongation, strong elasticity, and excellent durability through spraying with dedicated on-site equipment, achieving a new type of environmentally friendly waterproof coating with a "skin-like" rubber waterproof layer.

In brief, the main components of the sprayed rapid-setting rubber asphalt waterproofing material consist of two or more high-performance modified emulsified rubber asphalts and a chemical coagulant catalyst, forming a two-component system characterized by rapid initial setting and solidification.

The effective combination of the excellent performance of this product and scientific construction techniques maximizes the material performance and engineering quality, promoting the application of new materials, new processes, and new technologies.

schematic diagram

Product Features

1. Utilizing spraying technology, it boasts high efficiency, achieves seamless connections, and prevents water leakage. It excels in handling irregular structures or objects with complex shapes, making the construction process exceptionally straightforward and convenient. With an elongation capability exceeding 1000% of its original length and a recovery rate of over 90%, it effectively addresses issues such as stress deformation, expansion cracking, and punctures in various structures

2. Coating: It achieves seamless connection between the coating and the base layer, thus realizing the characteristics of waterproofing and non-peeling that are difficult to achieve with coiled materials. It is particularly suitable for irregular structures or complex shapes, making base layer construction simpler and more reliable. It can form a "skin-type" waterproof layer. It has strong adaptability to base layers and can be used on base materials such as reinforced concrete, profiled steel sheets, plastics, and various masonry materials;

3. Good temperature resistance: The low temperature flexibility can reach -40℃, making it suitable for waterproofing projects in extremely cold regions. Its high temperature resistance can reach 160℃, making it suitable for waterproofing projects on roads and bridges. The spraying surface treatment is simple, and if there are no special requirements, a leveling layer can be omitted. Construction can be directly carried out when the humidity is below 80%;

During the construction process, it can operate continuously, does not contain volatile organic compounds, is non-toxic and odorless, produces no exhaust emissions, does not pollute the environment, and can be used in enclosed spaces;

5. The coating exhibits superior weather resistance, acid and alkali resistance, and aging resistance, eliminating the need for a surface protective layer and effectively reducing engineering costs;

6. With a service life of over 50 years, it can be used in environments with temperatures not lower than 5℃, and it exhibits superior resistance to peeling and puncture;

After spraying, it can be molded within 3-5 seconds, can be stepped on, and has a ductility of over 15 times, a recovery rate of 95%, and effective sound insulation performance;

8. High construction efficiency: After spraying, it instantly takes shape, allowing for trampling and proceeding to the next process. Using professional spraying machinery for construction greatly saves construction costs and labor, significantly shortens the construction period, and one spraying equipment connects two spray guns, with two spray gun operators spraying simultaneously, achieving a daily construction capacity of over 1500m². Multiple construction methods (spraying, brushing, etc.) are flexible and convenient, meeting the functional requirements of various environments such as drainage outlets, parapets, internal and external corners, and cracked areas.

9. High elongation rate, which can solve the leakage caused by stress deformation. Because it is a spraying and rapid setting construction, it can quickly form a layer of film, resulting in no water leakage.

10. It has strong puncture resistance because it contains rubber, which has excellent ductility.

11. Excellent chemical resistance and good temperature resistance. Asphalt rolls generally have heat resistance of 70 degrees, 80 degrees, and 90 degrees. However, for spray-applied rapid-setting rubber waterproof coatings, it is no longer a characteristic of asphalt but rather a characteristic of rubber, which has very good ductility and elasticity. Therefore, its high temperature resistance is very good, making up for the defects of asphalt. Because there is a lot of rubber in it, its low temperature resistance is also very good. Both high and low temperature resistance are excellent. This is similar to polyurea, but compared to polyurea, it may not have as high strength, but it has very good flexibility.

12. It can be applied on wet surfaces because it contains water itself, so it can be applied on wet substrates. This is similar to polyurea, which sets quickly in a few seconds or ten seconds, so the substrate permeability is not particularly good. Therefore, we have a requirement that the bonding strength with the substrate is not as high as that of polyurethane, which is generally around 0.5 MPa. This is also a weakness of it, that is, the bonding with the substrate is not very good.

13. Adhesion: It can adhere to the surfaces of various materials such as concrete, wood, metal, and glass, without delamination, peeling, or shedding, providing good protection to the substrate.

14. Versatile functions: Forming a coating on the base surface not only achieves excellent waterproof performance, but also provides various functions such as corrosion resistance, protection, shock absorption, and noise resistance.

15. Water-based: As a new generation of environmentally friendly water-based materials, it is environmentally friendly and energy-saving. During production, application, and use, no organic solvents are used, making it non-toxic, odorless, waste-free, and emission-free. There is no pollution, and throughout the entire construction process, no heating is required, allowing for construction at room temperature without open flames, ensuring construction reliability.

construction technology

Steps/Procedures

The two-component (spray-on type) system consists of component A (liquid material) and component B (liquid material), which are sprayed using a dedicated spray-on rapid setting equipment according to preset proportions and pressures, solidifying and forming a film within 3-5 seconds. It is suitable for concealed tunnel vaults and other areas where application is not convenient, as well as for large-area waterproofing construction.

Before conducting large-area spraying, it is necessary to wait until all additional layers have formed a film. First, check the integrity of the spraying machine, whether the spray gun of the spraying machine is clean, and inspect the raw material transmission tube, filter screen, and valve. Check whether the spraying machine can work normally. Spraying operations should be carried out in zones and proper blocking work should be done in advance. Adjust the distance and angle between the nozzle and the substrate, as well as the pressure of the spraying equipment, to achieve a uniform thickness of the sprayed material surface without exposure of the substrate and with good adhesion.

Scope of Application

Roofing, underground waterproofing, indoor waterproofing, anti-corrosion engineering, etc.

The construction environment temperature for waterproof and anti-corrosion protective layers should be above 5℃. If construction is to be carried out in a damp and unventilated environment, exhaust equipment should be pre-installed. Waterproof construction should not be carried out on rainy or snowy days, or when the wind force is above level 5