... Insulating 3.Light Weight 4.ISO9001:2000 ISO14001:2004 polyurethane/PU sandwich panel for cold storageFeatures:1. Heat and sound insulation. ... Core Material40KG/m3Thickness of Core Material40mm, 50mm, 75mm, 100mm, 150mm,200mmEffect Width500-1130mmColorWhitegrey, Sliver, Sea Blue, Red, etcRecommended CoatingPVDF, ... Burning Height)≤15≤250Deimension stability ≤1%≤4%ASTM pu sandwich panel for refrigerator