SPUA II Two-Component Spray Polyurea Waterproof Material
Characteristics of the product
● The addition of urea group polymer with crosslinker and terminal amino polyols can significantly improve the material performance
● Suitable for soaking and waterproof occasions
● Does not contain harmful substances, and the paint film is non-toxic
● Strong bonding force with a variety of materials (including metals, ceramics and composites)
● Spraying molding, no flow hanging
Product Parameters
Serial Number |
Test Item |
Test result |
1 |
Solid content |
≥98% |
2 |
Gel time |
≤20s |
3 |
Tensile strength |
≥19Mpa |
4 |
Elongation |
≥550% |
5 |
Tear strength |
≥50N/m2 |
6 |
Adhesion (pull) Mpa |
5Mpa |
7 |
Alkaline resistance (immersed in 20%Na0H solution for 7 days) |
No change |
8 |
Water resistance (8h into boiling water) |
No change |
9 |
Acid resistance (immersed in 10%HCL solution for 7d) |
No change |
10 |
Hardness shore A |
90-95 |
Packing
A: 220kg B: 210kg
Storage
This product should be stored in a cool, dry, ventilated indoor warehouse with a storage period of one year.
Construction Conditions
Base surface requirements: The concrete base surface should be cleaned, repaired flat, and polished to a certain roughness. Ensure that the concrete curing is completed, the strength reaches C25 or above, and the moisture content is less than 8%. After processing the base surface, the next process should be carried out as soon as possible.
Environmental temperature and humidity requirements: The construction environment temperature should be between 5~35 ℃, and the base surface temperature should be at least 5 ℃ higher than the air dew point temperature; The humidity range should be between 30% and 80%.
Ventilation conditions: Ventilation should be maintained during construction, but construction should not be carried out when there is strong wind.
Painting methods and requirements
Mix component B of the coating evenly before use
A: B=1:1 (volume ratio)
Professional construction teams must use professional spraying equipment for construction, and the material temperature during spraying should be controlled between 50~80 ℃. In general, the next process can be carried out after 12 hours of painting. If the construction interval exceeds 24 hours, a layer of interface agent needs to be applied before construction can proceed. If encountering adverse weather such as rain after coating, a layer of interface agent must be applied before proceeding to the next process. Under normal circumstances, the paint film should be cured for at least 7 days after completion of painting to ensure the best performance of the paint film.