PIR Foam Polyols for High-Performance Insulation Systems
Enviol supplies advanced PIR foam polyols engineered for polyisocyanurate insulation systems used in industrial thermal insulation applications.
PIR foam systems provide superior fire resistance, dimensional stability, and low thermal conductivity compared to conventional polyurethane insulation systems.
These rigid foam insulation materials are widely used in sandwich panels, industrial roofing, cold storage, refrigeration systems, and high-temperature insulation applications.




How PIR Foam Systems Work
PIR foam systems are formed through the reaction of polyester or polyether polyols with excess polymeric MDI at a higher isocyanate index.
The elevated isocyanate ratio promotes the formation of isocyanurate ring structures which significantly improve thermal stability and fire performance.
PIR insulation systems exhibit excellent closed-cell structure, low thermal conductivity, superior dimensional stability, and enhanced resistance to heat exposure.
Featured PIR Foam Polyol Grade
PIR Foam Board Polyol
RENVIOL-PolyRig-2800
Polyester polyol developed for PIR rigid insulation systems.
Applications: PIR Insulation Boards, Cold Storage Panels, Continuous Sandwich Panels, Thermal Insulation Systems
Viscosity: 4000 - 7000 mPa.s @ 25°C
Hydroxyl Value: 240 - 280 mg KOH/g
Industrial Applications
Sandwich Panel Systems
PIR foam insulation is widely used in continuous sandwich panel production for industrial and commercial insulation applications.
Industrial Roofing Panels
PIR insulation boards offer improved fire resistance and thermal insulation for insulated roofing systems.
Cold Storage Insulation
Closed-cell PIR foam systems help maintain controlled low-temperature environments with high energy efficiency.
Refrigeration Insulation
Rigid PIR foam systems provide low thermal conductivity for refrigeration equipment and cooling applications.
Advantages of PIR Foam Polyols
• Excellent thermal insulation performance
• Improved fire resistance compared to conventional PUF systems
• High dimensional stability
• Low thermal conductivity
• Excellent closed-cell structure
• Suitable for high-performance insulation panels
• Enhanced thermal stability
• Long-term insulation efficiency
Technical Characteristics
| Property | Typical Performance |
|---|---|
| Thermal Conductivity | Low |
| Closed Cell Content | High |
| Fire Resistance | Excellent |
| Dimensional Stability | Excellent |
| Industrial Applications | Sandwich Panels, Roofing, Cold Storage, Refrigeration |
