RUST-OLEUM-Frosted Glass Semi-Transparent Aerosol Spray. Frosted Glass is a finish that obscures vision but lets light shine through the painted object. Ideal on glass doors; skylights; the outside of shower doors; and greenhouses. For a decorative effect use this spray with a stencil to create an etched look on mirrors and glass accessories. This package contains one 11 ounce aerosol can of Frosted Glass. DANGER! Extremely Flammable. Vapor Harmful. Vapors may cause flash fire. Contents under pressure. Made in USA.