Hometalk :: Lamp Makeover: How to Spray Paint a Brass Lamp Rust-Oleum White Primer primer on the lamp base. Use long sweeping passes and don’t stay in one area for too long or you will get drips. Dries really quick but I let it sit overnight. Next, I applied the Rust-Oleum Oil Rubbed Bronze. The picture above is after one coat I went back over it with a second coat to make sure I hit all the areas and it was perfect. 2 coats of the Minwax Spray Lacquer in the satin for protection.