VS-W03 Rigid PU Blend Polyols for Spray Insulation
Introduction
VS-W03 is spray blend polyols, blowing agent is 245fa, 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 dimensional stability.
It applies to all kinds of thermal insulation engineering which
uses the spray technology,such
as cold rooms, pots, large-scale pipelines etc.
Physical Properties
| Appearance | Pale Yellow to Brown Viscous Liquid |
| Hydroxyl Value , mgKOH/g | 200-300 |
| Dynamic Viscosity (25 ℃) , mpa.s | 100-200 |
| Specific Gravity (20 ℃ ) , g/ml | 1.12-1.20 |
| Storage Temperature , ℃ | 10-25 |
| Storage Stability , month | 6 |
Recommended Ratio
| Item | pbw |
| VS-W03 Blend Polyol | 100 |
| Isocyanate | 100-105 |
Reactivity Characteristics
(The temperature of the system is 20℃,and the exact value varied
depending on processing condition)
| Cream Time s | 3-5 |
| Gel Time s | 6-10 |
Foam Performances
| Item | The Standards | Index |
| Spray Density | GB 6343 | 30-40kg/m3 |
| Closed-Cell Rate | GB 10799 | ≥90% |
| Initial Thermal Conductivity at15℃ | GB 3399 | ≤24 mW/(m.K) |
| Compressive Strength | GB/T8813 | ≥150 kPa |
| Adhesive Strength | GB/T16777 | ≥120 kPa |
| Elongation at Break | GB/T9641 | ≥10% |
| Dimensional Stability | 24 hours at -20 ℃ | GB/T8811 | ≤1% |
| 24 hours at 70 ℃ | ≤1.5% |
| Water Absorption | GB 8810 | ≤3% |
| Oxygen Index | GB 8624 | ≥26 |
The data provided above are typical value, which are tested by our
company. For our
company's products, the data included in the law do not have any
constraints.
Packing: 220kg/Net Steel Drum/IBC Tank
Shelf Life: 6 Months
