Aluminum composite features an extruded PVC core with aluminum sheets on both sides, resulting in a very smooth finish. It is waterproof and suitable for both indoor and outdoor use. Ideal for shop signs, it offers long-lasting durability in outdoor environments. Our standard sheet size is 8ft x 4ft, with larger sizes available through tiling Please allow up to an additional 2 working days turnaround to what's been advertised with this product when ordering.