6″ panel, up to R-54
High-density polyurethane and QuadCore cores from Norbec and Kingspan, factory-insulated with vapor-tight cam-lock seams at every joint. A 6″ freezer panel rates R-40 to R-54, against R-27 to R-36 on our 4″ cooler standard, so the box holds set-point with the door cycling 200+ times a day. FM-approved assemblies, ASTM E84 and CAN/ULC-S102 fire-rated.