Vintaj Patinas are opaque inks that have been specially formulated to adhere to metal. Use them to create beautiful, durable, permanent patina effects. The ink is fast drying and can be heat-set for added durability. Each bottle contains 0.5 fl. oz.Details:Available in assorted colors0.5 fl. oz. (14 mL)Fast dryingCan be heat-setConforms to ASTM D-4236