Spray in short smooth strokes from side to side across the metal, holding the can about 10 inches from the surface. Two coats of primer should be plenty. Step 4.

A professional home painter shares his tips for painting both smooth and textured ceilings, with equipment recommendations ...

If your paint doesn’t include primer, follow the painting techniques in Step 6 with a spray primer formulated for use on metal, such as Rust-Oleum Clean Metal Primer.

As for the acoustic texture that remains on your ceiling, spray paint is a common means of encapsulating it. Paint will saturate the texture material and bond the entire surface into a solid crust.

Whether spray-painting something wood, metal or plastic, ... that will help remove any remaining particles left behind from sanding. ... Spray paint is the key to all kinds of DIY projects.