China Suppliers Factory SPUA II Two-Component Spray Polyurea Waterproof Coating for Superior Protection
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 |
Applications
Roof waterproofing, villa platform, terrace and other waterproofing protection
Packing
Storage
This product should be stored in a cool, dry, ventilated indoor warehouse with a storage period of one year.
Construction Conditions
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.
Suggested Use QTY
Usage Rate: 1.2kg/mm/m²
Waterproof National Standard: Thickness 1.5mm, single square meter dosage 1.8kg
Anti-corrosion National Standard: Thickness 2.0mm, dosage 2.4kg
Construction steps:
First step: clean the foundation, fill in the gaps
Second Step: Roll primer
Third step: SPUA Ⅱ spray construction
Forth step: Brush waterbased PU top coat
Frequently Asked Questions (FAQ)
What are the primary characteristics of this product?
This product is formulated with urea group polymers, crosslinkers, and terminal amino polyols, which greatly improve material performance. It is non-toxic, free of harmful substances, offers exceptionally strong bonding force with metals, ceramics, and composites, and features a spray-molded, flow-resistant structure ideal for waterproofing and soaking conditions.
What preparation is required for the concrete base surface?
The concrete base surface must be thoroughly cleaned, repaired flat, and polished to achieve a certain level of roughness. Curing must be complete, with the concrete strength reaching C25 or above and a moisture content of less than 8% before proceeding with the application.
What environmental conditions are required for construction?
The ambient temperature during construction should be between 5°C and 35°C. The base surface temperature must be at least 5°C higher than the air dew point, and the humidity should range between 30% and 80%. Proper ventilation is required, but construction should be avoided in strong winds.
What is the correct mixing ratio and spray application temperature?
Component B must be mixed thoroughly before use. The volume ratio for mixing Component A to Component B is 1:1. Professional teams must use specialized spray equipment, keeping the material temperature between 50°C and 80°C during application.
How much material is required for waterproofing and anti-corrosion applications?
The recommended usage rate is 1.2kg/mm/m². For the national standard waterproofing thickness of 1.5mm, the dosage is 1.8kg/m². For the national standard anti-corrosion thickness of 2.0mm, the dosage is 2.4kg/m².
What are the storage guidelines and packaging sizes for this product?
The product is supplied in packaging sizes of 220kg for Component A and 210kg for Component B. It should be stored in a cool, dry, and ventilated indoor warehouse. The storage shelf life is one year.