Add a vintage look to your glass projects with Gallery Glass Crackle Medium. This one-step fine crackle paint allows you to create a realistic cracked glass effect. Simply brush this unique formula on dried Gallery Glass paint to create a realistic weathered and worn look. Easily peel & reposition your design or create a permanent piece of glass art. From show-stopping window designs to gorgeous glass art accents, clings and seasonal décor, Gallery Glass is the affordable way to get a realistic stained glass look. Make your glass projects stand out with Gallery Glass Crackle Medium.