T-501A is spray blend polyols, it reacts with isocyanate to produce foam which has excellent performances, which are as follows,
1) fine and uniformity cells
2) low thermal conductivity
3) perfect flame resistance
4) good low temperature dimentional stability.
It applies to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc.
Physical Properties
Appearance Hydroxyl Value mgKOH/g Dynamic Viscosity (25 ºC) mpa.s Specific gravity (20 ºC ) g/ml Storage Temperature ºC Storage Stability month | Pale yellow to brown viscous liquid 310-380 100-200 1.12-1.20 10-25 6 |
Recommended Ratio
| pbw |
501A blend polyols Isocyanate | 100 100-105 |
Reactivity Characteristics
(The temperature of the system is 20ºC,and the exact value varied depending on processing condition)
Cream Time s Gel Time s Free rise density kg/m3 | 3-5 6-10 20-23 |
Foam Performances
items | Test Method | Index |
Spray Density Closed-cell Rate Initial Thermal Conductivity(15ºC) Compressive Strength Adhesive Strength Elongation at break Dimentional Stability 24h 70ºC Water Absorption Oxygen Index | GB 6343 GB 10799 GB 3399 GB/T8813 GB/T16777 GB/T9641 GB/T8811 GB 8810 GB 8624 | >30kg/m3 ≥90% ≤24mW/(m.K) ≥10% ≤2% ≤3% B2 |
