Product Description
STWD9527 hand applied modified polyurea roof waterproof material is a solvent free, green eco friendly product, it has long working time, good application effect and excellent waterproof property.
Product features / advantages
*The coating film is seamless, tough and dense
*It has strong adhesion, waterproof and alkali resistance, it has high adhesion with the substrate
*Excellent impact resistance, collision resistance and wear resistance
*Excellent corrosion resistance and chemical medium resistance, such as acid, alkali, salt, etc
*The leveling efficiency is high,
*The service life of building roof can reach more than 50 years without leakage.
Product application scope
It is suitable for the waterproof protection of building roofs, especially for roofs with harsh environment or high bond strength requirements.
Physical properties
| Item |
Results |
| Appearance |
Flat and bubble free |
| Solid content (%) |
≥98 |
| Pot life, h (25ºCRH 50%) |
30 |
| Surface dry time, h (25ºCRH 50%) |
≤8 |
| Mixing ratio |
A:B=1:4 (weight ratio) |
| Solid dry time (h) |
≤12 |
| Theoretical Coverage |
0.7kg/m2 (thickness 500 um) |
Typical physical test performance
| Item |
Results |
| Adhesion force |
Concrete base: ≥3.0Mpa (substrate broken) |
| Impact resistance (kg·cm) |
50 |
Corrosion resistance
| Salt resistance, 360h |
No rust, no bubbles, no peel off |
| Acid resistance (30%H2SO4,168h) |
No rust, no bubbles, no peel off |
| temperature resistance(-50-+150ºC) |
No changed |
| (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) |
Application tools and application guide
Scraping application method
Recommended dry film thickness: 500-1000um
Coating interval: minimum 1h, maximum 48h. If the maximum coating time is exceeded or there is dust on the surface, it is recommended to polish with sandpaper and clean it before application.
Prepare in strict accordance with the proportion. After fully mixing component A and B, add quartz sand or talc powder, and use it after fully mixing again.
Application environment
| Environment temperature |
5-35ºC |
| Relative humidity |
35-85% |
| Dew point |
≥3ºC |
| The concrete surface PH< 10, the water content of substrate: <10% |
Substrate treatment:
Concrete surface: ensure that the surface is solid, intact and clean, and remove the oil stain, mold, dust and other loose objects on the surface to make sure it is firm and dry.
Application note
- Agitate part B uniform prior to application
- The ratio should be allocated according to the product's pot life, so as to prevent the viscosity increasing.
- It is recommended to use in a well ventilated environment. If you accidentally touch your skin and eyes, rinse with clean water immediately.
- It is strictly prohibited to contact with acid and alcohol during application.
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