Rust-Oleum Professional Gray Fast Dry All-Purpose Spray Primer, 15 oz. is a high-performance primer designed to provide superior protection and durability. This professional-grade spray primer twice the protection d to enamels alone, making it i for use on metal, wood, concrete, and masonry surfaces in heavy-duty and commercial environments. It effectively guards projects against the elements with its fast-drying formula that works well both indoors and outdoors. The primer is corrosion-resistant and durable, ensuring long-lasting results. Each 15 oz. aerosol can covers approximately 30 square feet, delivering excellent coverage and ease of application for various projects. Model Number: 7582-838