Krylon's Workable Fixatif is a must for protecting pencil, pastel, chalk, charcoal, conté crayon and India ink drawings. The spray is acid free and archival safe and protects items from smudging, yellowing and wrinkling. It dries to the touch in 30 minutes and is dry to handle in 1 hour. Recoating can take place anytime. Each 11 oz.