Your high quality camera ready artwork is output on vinyl, then laminated between .020 Lexan and an aluminum or PVCA backing (aluminum backing is .080 aluminum PVCA backing in customer choice of .125'' or .25'' PVCA) with high pressure rollers. These signs, designed for outdoor use, are UV resistant, vandal resistant, non-reflective and are excellent for detailed, high quality artwork. For indoor use, medium protection, 2 mils thick film over laminate is applied instead of Lexan. Laminated signs are standard with square corners and without mounting holes.