If the doors were previously painted you may want to choose a color that s.
Sanding metal garage door.
Apply a metal primer before applying your garage door paint.
Use a medium to heavy grade sandpaper to sand the entire door.
When sanding metal to remove rust or to deburr an edge therefore you shouldn t use sandpaper with a grit coarser than 220 and if possible you should use an even finer one such as 320.
If the door has not been previously primed then apply at least one coat of metal primer to the entire metal door and frame.
Spray the metal garage door with water from a garden hose again to wash away the detergent and any residue.
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Choosing a paint color may be the most difficult aspect of the entire process and there are a few things to keep in mind.
Painting a metal garage door involves some time and effort but in the end it s a great way to give your home a fresh new look.
Prepping the garage door ensures that paint will go on easily and hold up well.
Use fine grit sandpaper around 400 over the entire surface of the door.
Then sand the door so that the newly applied paint will stick to the metal surface.
Sand the entire door not just the oxidized areas to help the primer stick to the door.
It s important that any flaking paint is well rubbed down and if you get back to bare metal then the metal must be primed.
Degrease the door with sugar soap then allow to dry.
If you are painting over a previously painted garage door then a light sanding is required along with the same degreasing process.
Applying a good paint thinner or stripper and scrubbing it with a metal wire brush should do the trick.
Put on your protective gear the work gloves dust mask and safety goggles and then remove any rusted or chipped.
Once all the paint is removed you will need to clean the door and let it dry.
If you are over coating a previously painted garage door then a light sanding is required along with the same degreasing process.
T he first thing you will need to do is remove any paint from your metal garage doors.
Mesa garage doors has been servicing the los angeles san diego and orange county areas with high quality new garage doors for over 30 years.
Roughen the surface of the metal garage door with a hand sander and medium grit sandpaper.
When painting metal it is really important that any loose paint is really well rubbed down and if in the process you get back to bare metal then this metal must be primed.
To allow the primer and paint to adhere to the surface of the door you should sand it down lightly first.