Updated： Sep 11, 2019, 3:23:44 AM
Apply a mild soap or detergent which has a scrub brush and sponge, thoroughly washing your whole surface of the house door. Be sure to remove all loose paint chips and other debris. Allow the garage door to dry for at least 24 hours before moving forward.
Apply your coat of thinned-down essential oil based priming paint. The recommended mix will be one pint of paint thinner for every one gallon of oil-based primer. Allow the primer to dry every day and night.
Apply an exterior coat of paint from the color of your option. Acrylic latex exterior house paint is best suited for. Allow the first coating to dry completely before determining whether a second coat is needed. When you can see blotchy areas, or are able to see the aluminum underneath the best coat of paint, paint another coat around the garage door. Continue this step until there's a easy, consistent finish.
Cool, overcast days are one of the best for painting aluminum.
It's your decision to spread out a new layer of newspaper about the ground below the door in order to avoid getting any unwanted paint on the garage floor or home garage.
You should possibly not paint aluminum on windy times as this causes the actual paint to dry more quickly. The finish paint needs to dry slowly to your advantage results.
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