Polyvine Acrylic Glass Frosting for Etched Glass Effect (100ml) Create the stunning visual effect of etched glass on your windows, mirrors, shower screens or any other glass surface! Use with stencils to transform plain glass panels to a work of art. Acrylic, non-hazardous medium is safe, easy to use and cleans up with just soap and water. Coverage: About 8 square feet per 100ml (3.5oz) Drying time: 2-4 hours at room temperature depending on humidity.