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Waterproof Coating Prepoly isocyanate STD-509
It is a two-component polyether polyurethane prepolymer, a colorless or light yellow liquid at room temperature (23°C).
| Properties | Test Standard | Unit | STD-509 |
| Physical state | Visual, 23°C | Colorless or light
yellow liquid |
|
| Ratio | / | / | 1:1 |
| Mixing
Temperature |
/ | °C | 30-40 |
| Gel time | HT/GM-P-2018 | Min | 10-20 |
| Post-vulcanization temperature | / | °C | 100 |
| Post-vulcanization time | / | h | 16 |
| Properties | Test
Standard |
Unit | STD-509 |
| Hardness | ASTM
D2240 |
Shore A | 80 |
| Density | ASTM
D792 |
g/cm³ | 1.07 |
| Tensile
Strength |
ASTM
D412 |
Mpa | 16 |
| Elongation atbreak | ASTM
D412 |
% | 550 |
| Right-angletear strength | ASTM
D624 |
N/mm | 65 |
| Rebound rate | ISO 4662 | % | 45 |
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