Special Polyurea Anticorrosive Protective Coating for Buried Pipeline EX-708
EX-708 is a 100% solids aromatic spray polyurea elastomer, produced through the reaction of isocyanate components with amino compound components. It requires specialized polyurea equipment for spray application. It is suitable for complex and variable geological structure layers, harsh climatic environments, and corrosion resistance in different climatic soils. Due to its excellent comprehensive physical properties and stable corrosion resistance, it has garnered the attention of relevant engineering design and construction units, and is continuously being applied in buried pipeline projects.
- Solvent-free, 100% solid content, safe, environmentally friendly, and odorless
- Quick curing, capable of being sprayed and formed on any curved, inclined, and vertical surfaces without sagging
- Dense coating without seams, good flexibility, and strong adhesion
- Excellent impact resistance, collision resistance, and wear resistance
- Excellent corrosion resistance to chemical media, including acids, alkalis, salts, and oils of certain concentrations
- Outstanding impermeability and waterproofing performance
- Excellent resistance to microbial and plant root erosion
- Excellent shock absorption performance
- Superior stability against temperature fluctuations
- Rapid curing allows the construction area to be quickly restored for use
- Outstanding durability reduces lifelong maintenance costs
- Extends the service life of the sprayed structure
| Item | Component A | Component B |
|---|---|---|
| Appearance | Light Yellow Liquid | Color Adjustable |
| Gravity (g/cm³) | 1.15 | 1.03 |
| Viscosity (cps) @25℃ | 1100 | 1000 |
| Solid Content (%) | 100 | 100 |
| Mix Ratio (Volume Ratio) | 1 | 1 |
| Gel Time (s) @25℃ | 25-35 | |
| Theoretical Coverage Rate (Dry Film Thickness) | 1.05kg/m² (Film Thickness 1mm) | |
| Item | Result |
|---|---|
| Hardness (Shore A) | 70 |
| Elongation at Break (%) | 20 |
| Tensile Strength (MPa) | 30 |
| Tear Strength (KN/m) | 78 |
| Impermeability (0.3MPa/30min) | Impermeable |
| Abrasion Resistance (750g/500r)/mg | 15 |
| Adhesion (MPa) Concrete Substrate | 3.6 |
| Adhesion (MPa) Steel Substrate | 12 |
| Cathodic Disbondment [1.5v,(65±5)℃48] | ≤15mm |
Packaging: 20-22 kgs/drum, 220 kgs/drum
Warranty Period: 10 months (unopened original packaging from production date)
Storage Temperature: 5-35℃
Storage Instructions: Ensure proper sealing and store in a cool, ventilated environment away from direct sunlight.
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