POLYISOCYANURATE SHEETS (PIR)Polyisocyanurate sheets are renowned for their excellent thermal and noise insulating properties, high strength to weight ratios, and shock absorbing characteristics. They are inert and stable over decades, and provide no nutritive value either to plants or animals. Geofoam Direct Polyisocyanurate blocks & sheets are available in Store and at our Sydney Factory Warehouse for sale in three densities (45KG Density). Standard block sizes are 2400x1200x600
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