Home » Materials » Foam Board
Rigid PU(polyurethane) foam is a high molecular polymer made of isocyanate and polyether as the main raw materials, mixed with foaming agent, catalyst, flame retardant and other additives through special equipment, and foamed by high-pressure spraying on site. It has a closed-cell structure, the bubbles are completely enclosed inside the foam, and the thermal insulation performance is excellent. It is widely used in structures that need to maintain the temperature difference between the inside and the outside.
In summary, its characteristics are reflected in:
- Excellent thermal insulation performance
The thermal conductivity of PU foam is the lowest among organic thermal insulation materials (≤0.022).
- Super flame retardant performance
It can be used for a long time in an environment of -50℃~150℃, and can withstand short-term high temperatures of 250℃.
- Good dimensional stability
The closed-cell structure of PU foam is not easily deformed by temperature and humidity.
Performance Parameters
| Item | Specification |
| Density | 28-50kg/m³ |
| Thermal conductivity | ≤0.024W/(m.k) |
| Bonding strength | ≥100kPa |
| Rate of dimensional change(70ºCx48h) | 1mm |
| Compressive strength | ≥160kPa |
| Tensile strength | ≥205kPa |
| Elongation at break | ≥10% |
| Porosity by closed pore | ≥92% |
| Water absorption | ≤3% |
| Water vapor permeability | ≤5Hg/(Pa.m.s) |
| Anti-permeability(1000mmx24h)(1000mm water column X24h hydrostatic pressure) | ≤5mm |
Common Applications
Building insulation
- PU foam is used for building exterior wall insulation, roof insulation, etc., which can effectively improve the energy efficiency of buildings and reduce energy consumption.
Cold chain industry
- PU foam can be used as the core material of sandwich panels, and can be compounded with surface materials such as metal plates and FRP plates to make insulation sandwich panels for building refrigerated trucks, cold rooms, clean rooms, etc.
Carving
In the fields of industrial design, automobile design, art design, etc., various models need to be made to demonstrate the design concept and product appearance. The characteristics of PU foam that is easy to carve and process make it one of the ideal materials for making models.
Customized Processing
- PU foam boards are dimensionally stable and easy to bond with the facing layer.
- Using high-precision CNC cutting, the size, thickness and shape can be processed according to application requirements.
- Foam boards can meet the corresponding fire rating requirements according to their use.
If you require detailed technical specifications on a specific product or have additional questions, please let me know and I can provide you with further information.