Rigid polyurethane foam is a high-molecular polymer made of isocyanate and polyether as the main raw materials, mixed by special equipment, and foamed by high-pressure spraying under the action of various additives such as foaming agent, catalyst, and flame retardant.
Features of PU Foam Board
- Lightweight
Polyurethane foam has a low density which makes it very lightweight for applications where overall weight reduction is required. - Thermal Insulation Performance
The thermal conductivity of polyurethane foam is extremely low, only 0.022～0.033W/(m*Κ). - Strength
Polyurethane foams can be prepared in different densities and strengths as needed to provide varying degrees of structural support and stiffness. - Processability
This foam core is easy to cut, shape and process and can be used to manufacture products of various shapes and sizes.
Performance of PU Foam Board
| Item | Unit | Reference | Value | |
| Apparent Density | Kg/m3 | 45.0-80.0 | 45.5 | |
| Dimensional Stability | Length | % | ≤1.5 | 0.34 |
| Thickness | 0.38 | |||
| Width | 0.39 | |||
| Dimensional Stability (70℃,48h) | % | ≤1.5 | 0.4 | |
| Thermal Conductivity | W/(m*k) | ≤0.0270 | 0.0242 | |
| R Value (at 40mm thickness) | m2*k/w | / | 1.74 | |
| Compression Strength | kPa | ≥200 | 226 | |
| Water Absorption | % | ≤3.0 | 1.8 | |