Rust-Oleum Auto Gray Primer Sealer Spray, 12 oz. is a sprayable formula designed to prevent paint from soaking into a primed surface. This primer sealer is applied over a surface already primed with a Rust-Oleum primer, ensuring that top coats do not soak into the primer and helping to achieve an even, uniform finish. It comes in a convenient 12 oz. aerosol spray can that features an any-angle spray system, allowing you to cover hard-to-reach areas even if the can is sprayed upside down. The comfort tip spray nozzle is designed to reduce finger fatigue during use. This product should not be applied to surfaces that exceed 200 degrees Fahrenheit and is used outdoors or in well-ventilated areas such as an open garage. It covers approximately 12 to 16 square feet and is available only in gray.