- 1). Remove any built-up grease, rust and dirt by lightly scrapping it with a wire brush. Do not apply enough pressure to mark the cast aluminum. Penetrate only the built-up grime with the wire brush bristles.
- 2). Degrease the entire surface by applying a degreasing cleaner formulated for cast aluminum. Such a cleaner is available at any grocery, automotive or hardware store. Follow the package instructions for application instructions.
- 3). Clean the aluminum with a sponge dipped in a solution of equal parts white vinegar and water to remove any chemical residue left behind by the degreaser.
- 4). Tape any of the areas that are not to be painted by wrapping them with painter's tape.
- 5). Apply two to three coats of primer to the cast aluminum. Follow the primer manufacturer's application instructions. Spray-on primers work well with the sculpted details of cast aluminum.
previous post