You can also use a spray primer suitable for aluminum but make sure to mask off areas that you do not want to be painted.
How to prepare aluminum garage door for painting.
Then tape off any areas you don t want the paint to touch like the edge of the house.
Next apply 1 coat of primer to help the paint stick and allow it to dry for 12 hours.
Prepping the garage door ensures that paint will go on easily and hold up well.
It is recommended that you thin oil based primer just a little by mixing in some paint solvent according to the manufacturer s instructions.
Painting your garage door boosts your curb appeal and protects it from the elements.
Allow the garage to dry completely.
Before painting a garage door clean it with a sponge and soapy water and dry it with a towel.
Prepare a bucket of dish detergent and water.
Clean the aluminum using a scrub pad.
Start at the top corner and continue along the walls.
With your brush paint cut in around the perimeter of the garage door in a 2 3 wide section.
Reload the brush when necessary and maintain a wet edge.
Leave the primer to set for at least 24 hours.