Garage doors are typically made from galvanized metal which conventional paints have trouble sticking to.
Painting bare metal garage door.
You could just grab any old gloss and slap it onto the surface but within days it will start flaking and peeling off.
Next prime any bare spots with a latex primer designed for use on galvanized metal then topcoat the door with a high quality exterior acrylic latex paint.
Make sure to allow each coat of paint to dry before you apply the next.
How to paint metal garage doors.
You should always apply paint to the bare metal surface of a door for the best results.
If you are remodeling a door that means using wire brushes and scraper tools to remove the existing paint.
Follow these steps to successfully paint your metal garage door yourself.
Preparation is key to painting a domestic or industrial metal garage door.
Good luck with your project tags.
There is a little preparation work involved before you actually start painting.
Metal garage doors can be painted by brush or by roller but if using a roller try and use one with natural fibers rather than man made.
Re apply several coats of paint until the metal is completely coloured with no metal shining through.