Start spraying on the surrounding protective newspaper or cloth to get a comfortable pressure on the trigger and then move into the door spraying horizontally in straight lines.
How to get spray paint off aluminum garage door.
You ll want to paint when the weather is comfortable and dry as paint may not dry to the desired finish if it s too hot or cold outdoors or if conditions are damp or wet from recent rain.
Apply remover sparingly and immediately rinse with water.
This works particularly well on spray paint.
To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime.
There is a little preparation work involved before you actually start painting.
Apply paint thinner to the painted area with a paint brush.
Now let s get to what you really want to know.
If the paint comes off with the masking tape it will not stick to the door and will chip or bubble after drying.
You can also use a nylon brush to scrub off the debris.
Let the door air dry after spraying it.
Place a piece of masking tape over the paint and peel it off.
Sand off any flaked paint with an ultrafine grit sanding sponge or sandpaper and wipe off the sanding dust with a rag or sponge.
After it s dry use a paint scraper and scrape off any paint or graffiti that is still there.
Use a pressure washer and cleaning solution to wash the entire area that is to be painted.
Make sweeping motions with the nozzle and stop periodically to check the progress.
Always ensure that you are standing at least 10 inches away from the garage door as spraying too close will cause the paint to become super thick and patchy.
When painting metal garage doors dry time will be faster than other materials.
Allow significant time for the surface to dry.
Tape off any trim and cover any surfaces you don t want sprayed such as windows or shrubs with plastic.
How to paint metal garage doors.
Removing graffiti from aluminum siding or painted metal garage doors is tricky because chemical remover can quickly strip away the painted factory finish along with the spray paint.