SWD9007 traffic tunnel special fire retardant polyurea anticorrosion protective coating
Product features and advantages
*Solvent free, 100% solid content, safe, environmentally friendly and odor free.
*Rapid cure, can be sprayed forming on any bent, slope and vertical surfaces, no sagging.
*Dense coating, seamless, with good flexibility
*High adhesive strength, can fast bond well on many substrate like steel, concrete, wood, fiber glass etc.
*Excellent impact resistance, abrasion resistance
*Excellent corrosion resistance and chemical resistance to acids, alkali, salts etc.
*Excellent waterproof performance
*Good shock absorbing performance
*Excellent resistance to temperature variation
*Fast cure, application site back to service quickly
*Excellent durability to reduce maintenance cost of service life
*Extend the service life of sprayed structure
Application scopes
Fire retardant anticorrosion waterproof protection of railways, road, urban subway and other transportation facilities.
Product information
| Item | A | B |
| Appearance | Pale yellow liquid | Adjustable color |
| Specific gravity (g/m³) | 1.12 | 1.22 |
| Viscosity (cps) @25℃ | 800 | 880 |
| Solid content (%) | 100 | 100 |
| Mix ratio (by volume) | 1 | 1 |
| Gel time (second) @25℃ | 4-6 | |
| Surface dry time (second) | 15-40 | |
| Theoretical Coverage (dft) | 1.08kg/㎡ Film thickness 1mm | |
Physical properties
| Item | Test standard | Result |
| Hardness (Shore A) | ASTM D-2240 | 92 |
| Elongation rate（%） | ASTM D-412 | 180 |
| Tensile strength（Mpa） | ASTM D-412 | 8 |
| Tear strength (N/km) | ASTM D-624 | 60 |
| Impermeability(0.3Mpa/30min) | HG/T 3831-2006 | impermeable |
| Wearable（750g/500r）/mg | HG/T 3831-2006 | 1.2 |
| Adhesive strength（Mpa）concrete base | HG/T 3831-2006 | 3.2 |
| Adhesive strength（Mpa) steel base | HG/T 3831-2006 | 11.3 |
| Density（g/cm³） | GB/T 6750-2007 | 1.08 |
| Cathodic disbondment [1.5v,(65±5)℃，48h] | HG/T 3831-2006 | ≤15mm |
| Fire retardant | GB8624-2012 | B1 |
