Paint the shelving with latex spray paint according to label directions after applying the primer. Spray multiple coats of paint on the surface until you reach the degree of coverage you desire. Allow the paint to dry between each coat. Paint shelves that are not detachable from their brackets with a brush or roller.Click to see full answer. Keeping this in consideration, can I spray paint metal without sanding?You can paint over rust and stop the damage without having to sand all the rust from the surface of the metal. Move your item to a well-ventilated location. Shake a can of metal primer spray paint for at least a minute to mix the paint.Furthermore, should I Prime metal before spray painting? If you want to spray paint metal, sand the surface with fine-grit sandpaper, then apply a coat of spray-on metal primer, holding the can 6 to 8 inches away from the surface as you work. Allow it to dry for at least 10 minutes before adding a second coat of primer. Allow the paint to dry thoroughly between coats. Subsequently, question is, is it better to spray paint or brush paint metal? Spray paint is also the way to go if you want a high-gloss, lacquer finish. Spray painting is faster than brush painting. Most spray paint is oil-based and provides a more durable finish than latex paint. Spray paint can be used on practically any surface, including wood, metal, wicker, plastic and resin.Which spray paint is best for metal? 4 Best Spray Paints for Metal – Reviews: Rust-Oleum Metal Spray Paint – Best Overall. PlastiKote Premium Enamel Spray Paint for Metal. Krylon Colormaster Metal Spray-Paint – Best Value. Hammerite Rust Cap Spray Paint for Metal Surfaces.