Silane modified polyether waterproof coating with excellent adhesion, heat resistance, cold resistance, weather resistance and paintability is prepared with silane modified polyether as the main raw material and additives, fillers and catalysts.
GENERAL
Silane modified polyether waterproof coating with excellent adhesion, heat resistance, cold resistance, weather resistance and paintability is prepared with silane modified polyether as the main raw material and additives, fillers and catalysts.
FEATURE
Scope of application
Silane modified polyether waterproof coating is mainly used in roof,
side wall and indoor. It can be used alone or as a bonding waterproof coating superimposed with coiled materials.
PERFORMANCE
Performance T/CBMF105-2021/T/CWA 203-2021 Silane Modified Polyether Waterproof Coating
| Serial number | Project | Technical index | |
| 1 | Solid content /% | 98 | |
| 2 | Surface drying time/h | 4 | |
| 3 | Drying time/h | 8 | |
| 4 | Tensile strength / MPa | 0.8 | |
| 5 | Elongation at break /% | 450 | |
| 6 | Low temperature bending / ℃ | No crack at -40℃ | |
| 7 | Impermeability | 1.0MPa，120min Impervious | |
| 8 | Heating expansion rate /% | -4.0~＋1.0 | |
| 9 | Bond strength / MPa | 0.6 | |
| 10 | Water absorption /% | 4.0 | |
| 11 | Heating aging at constant elongation | No crack and deformation | |
| 12 | Heat treatment (80 ℃, 168h) | Tensile strength retention /% | 80~150 |
| Elongation at break /% | 400 | ||
| Low temperature bending / ℃ | No crack at -40℃ | ||
| 13 | Alkali treatment [0.1% NaOH+ Saturated Ca(OH)2Solution] | Tensile strength retention /% | 80~150 |
| Elongation at break /% | 400 | ||
| Low temperature bending / ℃ | No crack at -40℃ | ||
| 14 | Combustion performance | B2-E (ignition 15s, combustion 20s,Fs ≤ 150mm, no burning drops igniting filter paper) |
Matters needing attention
◆Base surface treatment: the base surface shall be flat and free from unevenness and sanding.
◆Joint treatment: if the roof has cracks of more than 3mm, the sealing material shall be filled, and then the coating shall be scratched.
◆Coating scraping: rolling, scraping, coating and brushing can be used for construction. Generally, 2-3 layers of coating scraping can be applied, and the reference amount of coating scraping is 0.8-1.0kg/m2.
◆The total thickness of the coating film shall be more than 1.0mm, with an interval of 2-12h (depending on the weather). 1-2 layers of glass fiber cloth or other matrix materials can be added in the middle of the coating.
Packaging and storage
Packed in barrels, the weight of each barrel is 20kg/barrel, and the storage period is 6 months under normal storage and transportation conditions.
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