Spray Polyurea Elastic Waterproof Coating
1. Introduction
This product is a double-component coating. A component is isocyanate compounds; B component is amine compounds. Construction technology is applied by spraying to mix the two components, generating the elastic waterproof coating.
2. Characteristics
- High active and fast set.
- Solid content, no volatilization of organics, nontoxic, environmental friendly.
- Have great strengthened adhesion and nonmetal materials, such as steel, aluminum, concrete, timber, glass fiber reinforced plastic and polyurethane froth.
- It is insensitive to the temperature and the humidity.
- It is steady in both low temperature and the high temperature.
- Good weathering resistance and aging resistance.
- Excellent physical property.
- Outstanding function in waterproofing, decoration, anticorrosion, and anti-slip.
- Use the complete set of equipment to spray.
- Produce different colors according to the requirements.
3. Applications
It is widely used in all kinds of waterproof anti-corrosion projects, especially suitable for the following projects.
* Waterproofing projects: high-speed railway, tunnel, concrete road, bridge, airplane parking, etc.
* Industry and civil construction: roof waterproofing projects, etc.
* Underground waterproofing and moisture−proofing projects: industrial and civil construction, indoor swimming pools, etc.
* Government projects: subway, landfill, sewage farm, etc.
* Anti-corrosion projects: water conservancy, etc.
4. Physical properties
| No |
Item |
Ⅰ |
Ⅱ |
| 1 |
Solid content/% ≥ |
96 |
98 |
| 2 |
Gel time/s ≤ |
45 |
| 3 |
Dry time/s ≤ |
120 |
| 4 |
Tensile strength/Mpa ≥ |
10.0 |
16.0 |
| 5 |
Breaking elongation,(normal temperature)/% ≥ |
300 |
450 |
| 6 |
Tear strength/(N/mm) ≥ |
40 |
50 |
| 7 |
Water impermeability / 0.4Mpa, 2h |
Impermeable |
| 8 |
Flexibility at low temperature/°C ≤ |
-35 |
-40 |
| 9 |
Heating Shrinking / % |
Expansion ≤ |
1.0 |
| Shrinking ≤ |
1.0 |
| 10 |
Bonding strength/ Mpa ≥ |
2.0 |
2.5 |
| 11 |
Salt Resistance |
Flexibility at low temperature/°C ≤ |
-30 |
-35 |
| Tensile strength Stability/% |
80-150 |
| Breaking elongation/% ≥ |
250 |
400 |
| 12 |
Synthetic aging |
Flexibility at low temperature/°C ≤ |
-30 |
-35 |
| Tensile strength Stability/% |
80-150 |
| Breaking elongation/% ≥ |
250 |
400 |
Remark: Product property can be customized.
5. Attention
- It is supposed to be sealed and stored upside down in a cool and dry place, avoiding direct sun exposure and humidity.
- During storage, there would be buildups on its surface. Just get rid of the buildups before application.
- Unspent coating is supposed to be sealed timely in case of curing and abandoned.
- During and after the process of waterproof construction, protect it timely, preventing from artificial damage.
- The storehouse or construction site should be kept away from fire. In the process of construction, workers should wear protective clothing.
- Storage time is 6 months. If it is qualified enough beyond storage time, it can still be put into use.
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