Designed for bare aluminum to prepare the surface for painting, provide rust protection and a tough finish that withstands weathering High quality, durable oil-based formula maintains consistent, corrosion-resistant color despite the elements and provides twice the protection of paint alone Covers up to 14 sq. ft., dries to touch in 15 minutes and ready for immediate topcoat application; Indoor/outdoor Commercial, industrial paint formula features a high output tip that can be sprayed at any angle Primer provides a base for excellent adhesion and withstands demanding, heavy-use environments