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SPUA I Two-Component Spray Polyurea Waterproof Coating - China Suppliers Factory Product
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% NaOH 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.
🌡 Environmental Temperature & 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
- 1 Mix component B of the coating evenly before use.
- 2 Mixing ratio: A : B = 1 : 1 (volume ratio)
- 3 Professional construction teams must use professional spraying equipment for construction, and the material temperature during spraying should be controlled between 50~80 ℃.
- 4 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.
- 5 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
📌 Waterproof national standard thickness 1.5mm, single square meter dosage 1.8kg
📌 Anti-corrosion national standard thickness 2.0mm, dosage 2.4kg
📌 Anti-corrosion national standard thickness 2.0mm, dosage 2.4kg
Construction Steps:
1
First Step: Clean the foundation, fill in the gaps
2
Second Step: Roll primer
3
Third Step: SPUA I polyurea spray construction
4
Fourth Step: Brush waterbased PU top coat
Frequently Asked Questions (FAQ)
Q
What is the solid content of this polyurea coating, and why does it matter?
The solid content is ≥94%, which means the coating leaves behind a very high proportion of actual film-forming material after curing. This results in a thicker, more durable protective layer with minimal shrinkage, making it ideal for demanding waterproof and anti-corrosion applications.
Q
What are the typical application scenarios for this non-exposed type polyurea coating?
This product is suitable for external wall waterproofing, swimming pool waterproofing, general building waterproofing, and sports stand protection. It is designed for non-exposed environments where the coating will be covered or protected from direct UV exposure.
Q
What are the environmental requirements during construction?
Construction should be carried out when the ambient temperature is between 5~35 ℃. The base surface temperature must be at least 5 ℃ above the air dew point, and the relative humidity should be between 30% and 80%. Adequate ventilation is required, but construction should be avoided in strong wind conditions.
Q
How long should I wait before the next construction process after applying the coating?
Under normal conditions, the next process can begin after 12 hours. If the interval exceeds 24 hours, or if the coated surface has been exposed to rain, a layer of interface agent must be applied before proceeding. The paint film should be fully cured for at least 7 days after application to achieve optimal performance.
Q
How is the coating mixed and applied?
Component B should be mixed evenly before use. The mixing ratio of A to B is 1:1 by volume. Application must be performed by a professional construction team using dedicated spraying equipment. The material temperature during spraying should be maintained between 50~80 ℃ to ensure proper atomization and film formation.
Q
How should this product be stored, and what is its shelf life?
The product should be stored in a cool, dry, and well-ventilated indoor warehouse away from direct sunlight and heat sources. The shelf life is one year from the date of manufacture when stored under the recommended conditions. Packing specifications are A: 220kg and B: 210kg per drum.