Piñata Alcohol Inks are fast-drying, highly saturated inks, particularly suited for any hard surfaces as well as projects like scrapbooking, faux finishing techniques, and wood and leather staining. Great for use on mediums such as glass, plastic, wood, encaustic medium, fibreglass, polymer, clay, acrylic, ceramic, stone, metal, GlassCast resins, plastic, vinyl, leather, foil, and more. These great inks are impervious to water and indelible, this allows for great effects, unique each time.. Piñata inks are unparalleled for vibrancy, the dye-based highly transparent ink makes it ideal for stained glass projects. The best of the lightfast dyes have been selected for the range, they are acid-free, have super adhesive qualities and are great for all non-porous surfaces.