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Contact Supplierpir (polyisocyanurate) sandwich panels are now a days preferred because
polyisocyanurate (pir) foam is chemically and thermally more stable: breakdown of isocyanurate bonds is reported to start above 200°c, compared with urethane at 100 to 110°c.
fire resistance (self fire extinguishing feature) of this material is better than b-3 types pu.
hi rib panels are for roof application. low/ micro rib panels are for walls / ceiling/ partitions.

