These outdoor acrylics work great for both indoor and outdoor use. They are permanent and extremely durable with excellent adhesion to outdoor surfaces such as canvas, concrete, masonry, paper, stone, Styrofoam, terra-cotta, walls and wood. It is weather-proof, scuff resistant and has excellent coverage. No sealer is needed and it will not crack or peel. It is water-based, non-toxic and easy to clean. Approximate coverage is 6.25 ft. per 2 oz. bottle. For best results apply with an air or surface temperature between 45-85 Fahrenheit. Do not expose to moisture for 72 hours after painting.