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China Spray Polyurea Waterproof Coating Suppliers | Factory for Surface Protection & Industrial Floors
Characteristics of the Product
- Ultra-fast curing; continuous spraying available on curved surfaces, vertical walls and top surfaces without sagging.
- Excellent waterproof performance to fully isolate substrates from water erosion.
- Outstanding physical & chemical properties, strong adhesion to various base materials.
- High construction efficiency; designed thickness can be achieved in one single pass.
- Integral, dense and seamless coating film.
- Mechanized spraying construction with stable, controllable film quality.
- Solvent-free & heavy-metal-free, eco-friendly formula.
- 100% solid content, zero VOC emission.
- Wide service temperature range: -45 ℃ ~ 150 ℃.
- Continuous compact seamless film, practical and attractive appearance.
Product Parameters
| No. | Test Item | Technical Requirement | Test Result |
| 1 | Solid Content (%) | ≥98 | 99 |
| 2 | Gel Time (s) | ≤45 | 16 |
| 3 | Surface Dry Time (s) | ≤120 | 20 |
| 4 | Tensile Strength (MPa) | ≥16.0 | 16.24 |
| 5 | Elongation at Break (%) | ≥450 | 460 |
| 6 | Tear Strength (N/mm) | ≥50 | 66 |
| 7 | Low-temperature Bending (℃) | ≤-40 | -40 |
| 8 | Water Impermeability | 0.4 MPa, impermeable for 2h | Impermeable |
| 9 | Heating Elongation (%) | Elongation / contraction ≤1.0 | 0.4 |
| 10 | Bond Strength (MPa) | ≥2.5 | 3 |
| 11 | Water Absorption (%) | ≤5.0 | 0.5 |
| 12 | Thermal Aging & Artificial Weathering Appearance | No cracks & deformation | No cracks & deformation |
| 13 | Thermal Aging Performance | ||
| Tensile Strength Retention Rate (%) | 80–150 | 97 | |
| Elongation at Break (%) | ≥400 | 411 | |
| Low-temperature Bending (℃) | ≤-35 | -35, no crack | |
| 14 | Alkali Resistance Performance | ||
| Tensile Strength Retention Rate (%) | 80–150 | 103 | |
| Elongation at Break (%) | ≥400 | 413 | |
| Low-temperature Bending (℃) | ≤-35 | -35, no crack | |
| 15 | Acid Resistance Performance | ||
| Tensile Strength Retention Rate (%) | 80–150 | 99 | |
| Elongation at Break (%) | ≥400 | 410 | |
| Low-temperature Bending (℃) | ≤-35 | -35, no crack | |
| 16 | Salt Resistance Performance | ||
| Tensile Strength Retention Rate (%) | 80–150 | 97 | |
| Elongation at Break (%) | ≥400 | 409 | |
| Low-temperature Bending (℃) | ≤-35 | -35, no crack | |
| 17 | Artificial Weathering Performance | ||
| Tensile Strength Retention Rate (%) | 80–150 | 83 | |
| Elongation at Break (%) | ≥400 | 408 | |
| Low-temperature Bending (℃) | ≤-35 | -35, no crack | |
| 18 | Hardness (Shore A) | ≥80 | 85 |
| 19 | Abrasion Loss (750g/500r, mg) | ≤30 | 1 |
| 20 | Impact Resistance (kg·m) | ≥1.0 | 1.0 kg·m, intact |
Application Scope & Construction Method
- Chemical, petroleum & petrochemical industry: workshop floors, storage tanks, neutralization tanks, drainage trenches.
- Environmental facilities: landfill sites, sewage treatment tanks, waste gas filtration towers.
- Factory & warehouse floors: anti-corrosion and wear-resistant protection.
- Steel structures: metal pipelines, bridge decks, ship decks and platforms.
- Building waterproofing: roof waterproofing, exterior wall waterproofing & renovation.
- Municipal facilities: sports grandstands, anti-seepage wear-resistant flooring.
- Aquatic venues: water parks, swimming pools, aquaculture ponds.
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Packaging Specification
- Component A: 220 kg per drum
- Component B: 210 kg per drum
Storage
- 1. Store in sealed, cool, dry and ventilated warehouse; avoid direct sunlight, rain and all ignition sources.
- 2. Shelf life: 6 months under original sealed packaging and specified storage conditions.
- 3. Expired material can be reused only if re-inspection meets all technical indexes.
- 4. Use up quickly once opened; re-seal tightly for storage if unused.
- 5. Solvent-free product, classified as non-hazardous goods for transportation.
- 6. Strictly prevent rain, sunlight and violent collision during transit; stack materials neatly and stably, complying with transport regulations.
Construction Conditions
1. Substrate Requirements
Concrete base shall be cleaned, leveled and polished to form proper roughness. Concrete curing must be fully completed with strength ≥ C25 and moisture content ＜8%. Proceed to next process immediately after substrate treatment.
2. Ambient Temperature & Humidity
- ● Construction temperature: 5 ~ 35 ℃
- ● Substrate surface temperature shall be at least 5 ℃ higher than dew point
- ● Relative humidity: 30% ~ 80%
- ● Keep ventilation; stop construction under strong wind.
Coating Method & Requirements
- 1. Stir Component B thoroughly before use; volume mixing ratio A:B = 1:1.
- 2. Professional spraying equipment is mandatory; material temperature controlled at 50 ~ 80 ℃ during spraying.
- 3. Next process can be carried out after 12 hours curing. If interval exceeds 24 hours, apply interface agent before re-spraying.
- 4. If rain occurs after coating, apply interface agent before subsequent construction.
- 5. Full film curing time: minimum 7 days to achieve optimal comprehensive performance.
Recommended Consumption
- Standard dosage: 1.2 kg per square meter per mm thickness
- National standard waterproof thickness 1.5 mm: 1.8 kg/㎡
- National standard anti-corrosion thickness 2.0 mm: 2.4 kg/㎡
Safety & Labor Protection
- Read product manual and warning labels fully before operation; master construction specifications.
- No open flame, welding or smoking on construction site; maintain good ventilation.
- Although solvent-free, spray mist will be generated during spraying. Wear gas mask and full protective gear to avoid inhalation and direct skin contact.
- Flush splashed coating on skin with detergent, soap and plenty of clean water immediately. For eye splashes, rinse thoroughly with water and seek medical treatment promptly.
- Fully cured dry film is non-toxic under normal application conditions. For more details, please contact Shandong Century Union New Materials Technology Co., Ltd.
Construction steps
First step: clean the foundation, fill in the gaps
Second Step: Roll primer
Third step: self-leveling cold polyurea floor construction
Forth step: Brush waterbased PU top coat
Frequently Asked Questions
What is the mixing ratio and preparation requirement for this product?
The volume mixing ratio is Component A:B = 1:1. Component B must be stirred thoroughly before use. Professional spraying equipment is mandatory during the application, with the material temperature controlled between 50 to 80 ℃.
What are the key concrete substrate requirements before application?
The concrete base must be cleaned, leveled, and polished to form the proper roughness. The concrete curing must be fully completed with a minimum strength of C25 and a moisture content of less than 8% before proceeding.
What is the service temperature range and curing time?
The product has a wide service temperature range of -45 ℃ to 150 ℃. The next construction process can be carried out after 12 hours of curing, while the full film curing time is a minimum of 7 days to achieve optimal comprehensive performance.
What is the recommended consumption for waterproofing and anti-corrosion applications?
The standard dosage is 1.2 kg per square meter per mm of thickness. For national standard waterproofing (1.5 mm thickness), the recommended consumption is 1.8 kg/㎡. For national standard anti-corrosion (2.0 mm thickness), the consumption is 2.4 kg/㎡.
How should the components be stored, and what is the shelf life?
The product must be stored in a sealed, cool, dry, and ventilated warehouse, away from direct sunlight, rain, and ignition sources. The shelf life is 6 months under original sealed packaging conditions. Once opened, it should be used up quickly or tightly re-sealed.
Are there any specific environmental conditions required for construction?
Yes, construction should take place at an ambient temperature of 5 to 35 ℃, with a relative humidity between 30% and 80%. Additionally, the substrate surface temperature must be at least 5 ℃ higher than the dew point, and construction must stop during strong winds.