If the aluminum garage door's factory-painted surface has faded or has areas where the paint is completely put on, it's time for a different coat of paint. Painting aluminum doors is not at all hard. You will save a lot of money by painting the garage doors yourself as an alternative to hiring someone. Painting aluminum is often a slightly different process than painting an interior or perhaps exterior wall, so use paint which is designed to adhere to aluminum. Step 1 Apply a mild soap or detergent using a scrub brush and sponge, thoroughly washing the whole surface of the storage area door. Be sure to clear out all loose paint chips and also other debris. Allow the garage doorway to dry for at least 24 hours before continuous. Step 2 Apply any coat of thinned-down petrol based priming paint. The recommended mix will be one pint of paint thinner for each one gallon of oil-based primer. Allow the primer to dry all day and night. Step 3 Apply an exterior coat of paint inside the color of your decision. Acrylic latex exterior house paint powerful. Allow the first cover to dry completely before determining whether an extra coat is needed. When you can see blotchy areas, or can see the aluminum underneath the first coat of paint, paint another coat within the garage door. Continue this until there's a sleek, consistent finish. Tip Awesome, overcast days are the very best for painting aluminum. You'll probably decide to to spread out any layer of newspaper to the ground below the door to stop getting any unwanted paint in your garage floor or home garage. Warning You should definitely not paint aluminum on windy days and nights as this causes this paint to dry faster. The finish paint must dry slowly for the best results. where to buy sludge dewatering machine