VI-R02 High Density Polyurethane Blend Polyols for Spray Foam
VI-R02 Blend Polyols belongs to the spray blend polyols series with a pale yellow to brown yellow transparent liquid .After reacting with isocyanate at the certain ratio to produce foam. Mainly used in the building roof insulation project, cold storage, large-scale pipelines project and all types of abnormity thermal insulation projects. It have the advantage of smooth and uniformity cell,low thermal conductivity; good flame resistance and excellent low temperature dimentional stability and so on.
Typical Physical Index
Appearance | Pale Yellow to Brown Viscous Liquid |
Hydroxyl Value , mgKOH/g | 310-380 |
Dynamic Viscosity at 25 ℃ , mPa.s | 100-200 |
Gravity at 20 ℃ , g/ml | 1.12-1.20 |
Storage Temperature, ℃ | 10--25 |
Shelf Lift | 6 Months at Temperatures of 20-30°C |
Processing Condition Characteristics
Mixing Ratio (PBW) | VI-R02: MDI =100: 100-105 |
Components temperature , ℃ | 20 |
RT ,s | 3-5 |
GT ,s | 6-10 |
The actual data at customer site may be different because of test machine and condition, etc. |
Foam Properties
NO. | Item | Index |
1 | Initial Thermal Conductivity at 15℃ | ≤0.024 W/m.K |
2 | Spray Density | ≥50kg/m3 |
3 | Free Rise Density | ≥10% |
4 | Adhesive Strength | ≥35kg/m3 |
5 | Closed-cell Rate | ≤1% |
6 | Compressive strength | ≥3000MPa |
7 | Elongation at break | ≥10% |
8 | Dimensional Stability | 24 hours at -20 ℃ | ≤1% |
24 hours at 70 ℃ | ≤1.5% |
9 | Oxygen index | ≥26 |
10 | Water absorption | ≤3% |
Packing： 220kg/Net Steel Drum/IBC Tank
