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PIR SANDWICH WALL PANEL

Polyisocyanurate is called PIR for short. For the composite boards developed by Duowei, excessive isocyanurate is added and ring structure and higher isocyanurate index are employed in the compounds to form compact PIR products, thus ensuring greater stability and excellent heat and fire resistance for the internal rigid foams. Experiments show that the products can endure a temperature up to 200℃ in short time period or to 160℃ for long time. Fluoride-free, highly environmental friendly, no influence on ozone sphere and greenhouse effect.
• Enhance foam strength, improve the mechanical property of sheets.
• Excellent heat insulation performance.
• Strengthen dimensional stability, improve the flatness of the panel surface and the quality of finished sheets is superior.

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