Real Milk Paint® can be used outdoors and offers some excellent properties, including being fade resistant and color fast. Typcially for exterior applications, we recommend applying milk paint only over porous surfaces such as raw wood, concrete, brick, etc. Since Real Milk Paint® is a porous paint, we also recommend sealing it for the best resistance to the elements. Our Outdoor Defense Oil is a great option to provide water protection. If you’re working on wood that is particularly knotty, you may also want to include Outdoor Additive to keep knots from showing through the paint. When paired with a topcoat, Real Milk Paint® creates a durable, longlasting exterior paint.