New Keyboard Stickers (Lexan® Polycarbonate Material, 3M® Adhesive). Be sure to clean your keyboard, or start with a new keyboard, before applying the stickers. The stickers are printed on clear Lexan® so the original key legend shows through; this allows you to add stickers to your existing keyboard so that it becomes a bilingual keyboard. The stickers are a very economical option for creating a bilingual keyboard. The language stickers use an easy peel-and-stick method to apply. They will not ooze adhesive, dry out or damage the original keyboard key. The letters are printed on the underside of the stickers so that the lettering will not wear out.