Product Description
STWD9009 high-speed railway roadbed special polyurea is 100% solid content aromatic polyurea elastomer. It has excellent waterproof, anti-corrosion, anti-aging properties, passed the quality inspection of the State Ministry of Railways, it has been successfully applied in domestic high-speed railway construction project.
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 and adhesive strength
*Excellent impact resistance, abrasion resistance
*Excellent corrosion resistance and chemical resistance to acids, alkali, salts etc.
*Excellent waterproof performance and anti-aging.
*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
Product Applications
Waterproof anticorrosion protection of high-speed railways and other traffic roadbeds.
Products information
| Item |
A |
B |
| Appearance |
Pale yellow liquid |
Adjustable color |
| Specific gravity (g/m³) |
1.12 |
1.03 |
| Viscosity(cps)@25ºC |
810 |
660 |
| Solid content (%) |
100 |
100 |
| Mix ratio(by volume) |
1 |
1 |
| Gel time(second)@25ºC |
4-6 |
| Surface dry time(second) |
15-40 |
| Theoretical Coverage(dft) |
1.08kg/m2 Film thickness 1mm |
Physical properties
| Item |
Test standard |
Result |
| Hardness (Shore A) |
ASTM D-2240 |
90 |
| Elongation rate(%) |
ASTM D-412 |
480 |
| Tensile strength(Mpa) |
ASTM D-412 |
19 |
| Tear strength (N/km) |
ASTM D-624 |
69 |
| Impermeability(0.3Mpa/30min) |
HG/T 3831-2006 |
impermeable |
| Wearable(750g/500r)/mg |
HG/T 3831-2006 |
4.1 |
| Adhesive strength(Mpa)concrete base |
HG/T 3831-2006 |
3.4 |
| Adhesive strength(Mpa) steel base |
HG/T 3831-2006 |
11.5 |
| Density(g/cm³) |
GB/T 6750-2007 |
1.05 |
| Cathodic disbondment [1.5v,(65±5)ºC,48h] |
HG/T 3831-2006 |
≤15mm |
Chemical resistance
| Acid resistance 10%H2SO4 or 10%HCI,30d |
No rust, no bubbles, no peel off |
| Alkali resistance 10% NaOH, 30d |
No rust, no bubbles, no peel off |
| Salt resistance 30g/L,30d |
No rust, no bubbles, no peel off |
| Salt spray resistance, 2000h |
No rust, no bubbles, no peel off |
| Oil resistance 0# diesel, crude,30d |
No rust, no bubbles, no peel off |
| (For reference: the above data is acquired based on GB / T9274-1988 test standard. Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data) |
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