The Cooley-Brite Touch up ink is useful to keep your Backlit sign and awnings looking nice. Touch up ink is matched to the dye lot of your Cooley Brite eradicable fabric to ensure a uniform look. Whether upkeep is needed from wear and tear, stains or mistakes made during the eradication process on backlit signs and awnings Touch-up Ink will keep your signs and awnings look brilliant for many years. Touch up inks are sold in 8 ounce cans.