Metal Print (No Frame)We print on clear and white coated, glossy and matte 0. 042" thick aluminum sheeting by Chromaluxe. Currently, we only allow the upload of . jpeg files through the website. Please contact us if you would prefer to use a different format. Our prints are created through a special process called sublimation that embeds ink into the recipient coatings on our Chromaluxe aluminum. First, we print a high quality inkjet "negative" of the file that you