... sticker 4 use outside 5 years at least bumper&car sticker&waterproof and UV proof/epoxy sticker/metal sticker ... fade1. Materials: metal , plastic etc., can be transparent or white background, gloss or matt, with laminated PE, special type ... , rotogravure printing, silk screen printing, flexography printing, UV lithography, foil blocking.4. Surface: silk screen printing, bronzing, imprint, cover ...