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SPUA I Two-Component Spray Polyurea Waterproof Coating - China Suppliers & Factory Quality
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 | ≥94% |
| 2 | Gel time | ≤45s |
| 3 | Tensile strength | ≥10Mpa |
| 4 | Elongation | ≥350% |
| 5 | Tear strength | ≥40N/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 | 85-90 |
Applications (Non-exposed type)
Suitable for external wall waterproof, swimming pool waterproof and other building waterproof and sports stand protection.
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.
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%.
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.
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.
Suggested Use QTY & Construction Steps
Dosage Reference:
• Waterproof national standard thickness 1.5mm, single square meter dosage 1.8kg
• Anti-corrosion national standard thickness 2.0mm, dosage 2.4kg
• Waterproof national standard thickness 1.5mm, single square meter dosage 1.8kg
• Anti-corrosion national standard thickness 2.0mm, dosage 2.4kg
First step: Clean the foundation, fill in the gaps
Second step: Roll primer
Third step: SPUA I polyurea spray construction
Fourth step: Brush waterbased PU top coat
Frequently Asked Questions (FAQ)
What are the recommended storage conditions and period?
The product should be stored in a cool, dry, and ventilated indoor warehouse. Under these conditions, the storage period is one year.
What is the correct mixing ratio for the coating?
Component B must be mixed evenly before use. The mixing ratio is Component A to Component B at 1:1 by volume.
What temperature is required when spraying the material?
Professional construction teams must use professional equipment, and the material temperature during spraying should be controlled strictly between 50~80 ℃.
What are the requirements for the concrete base surface before application?
The base surface should be cleaned, repaired flat, and polished. Concrete curing must be completed with a strength of C25 or above, and moisture content must be less than 8%.
How long does the paint film need to cure after painting?
Under normal circumstances, the paint film should be cured for at least 7 days after completion to ensure optimal performance.
What is the suggested dosage per square meter?
For a waterproof national standard thickness of 1.5mm, the dosage is 1.8kg per square meter. For an anti-corrosion national standard thickness of 2.0mm, the dosage is 2.4kg per square meter.