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High-Quality China Supplier Factory Spray Polyurea II Two-Component Waterproof Coating for Durable 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 | ≥94% |
| 2 | Gel time | ≤45s |
| 3 | Tensile strength | ≥10 MPa |
| 4 | Elongation | ≥350% |
| 5 | Tear strength | ≥40 N/m² |
| 6 | Adhesion (pull) MPa | 5 MPa |
| 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
Component A: 220 kg | Component B: 210 kg
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 1.8 kg；
Anti-corrosion national standard thickness 2.0mm, dosage 2.4 kg.
Construction Steps:
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)
Q
What is the solid content of this polyurea coating?
The solid content of this product is ≥94%, ensuring excellent film formation and durable protection performance after application.
Q
What surfaces is this polyurea coating suitable for?
This coating is suitable for external wall waterproofing, swimming pool waterproofing, building waterproofing, and sports stand protection. It bonds strongly with metals, ceramics, composites, and concrete substrates.
Q
What are the mixing ratio and application temperature requirements?
The mixing ratio of Component A to Component B is 1:1 by volume. During spraying, the material temperature should be controlled between 50–80 ℃ using professional spraying equipment.
Q
How long does the paint film need to cure before use?
Under normal circumstances, the next construction process can begin after 12 hours of painting. For best performance, the paint film should be fully cured for at least 7 days after completion.
Q
How should this product be stored, and what is its shelf life?
This product should be stored in a cool, dry, and well-ventilated indoor warehouse. The shelf life is one year from the date of manufacture when stored under proper conditions.
Q
What is the recommended dosage per square meter?
For waterproofing applications at the national standard thickness of 1.5mm, the recommended dosage is 1.8 kg per square meter. For anti-corrosion applications at 2.0mm thickness, the dosage is 2.4 kg per square meter.