How To Paint A Cast Aluminum Mailbox – If you have run down most any neighbourhood street, you probably noticed paint chipping from more than an aluminum mailbox. The culprit in this kind of berries is almost always poor finishing. Since the metallic surfaces are slick and non-porous, they must be conditioned before the paint will adhere to them. Unfortunately, the aluminum durability friction based abrasion techniques useless. So you need to apply a special kind of paint primer that will scrape the surface of the mailbox, or you will eventually end up with chipping and peeling.
To paint, remove the address numbers from the cast aluminum mailbox. Use a screwdriver if they are screwed on. Use a plastic spatula to scrape them off if they are stickers. Scrub mailbox pure aluminum using an aqueous degreasing agent. Rinse the mailbox by using a water hose. Allow the surface to dry completely, and then scrape off all loose or peeling paint from the mailbox by using a plastic spatula.
Apply tape to the checker flag and all other areas in the mailboxes that do not want exposed to the paint when painting cast aluminum mailbox. Apply corrosion rust spray sealer every area of the aluminum box. Let the sealer dry, it takes about two hours, after the sealer dry etching primer layer applied to all parts of the mailbox that want painted. Let the primer dry etching layer, it will take about four hours. Then apply two coats of acrylic spray paint to the mailbox, let dry. It will take two hours of drying time between coats.