You re likely to remove some of the paint as you scrub.
Painting over rusted garage door.
It helps if you brush in small circles.
How to paint a rusted garage door 1.
Also learn plenty of painting tips in this short video.
Sand the door again using medium grit sandpaper to smooth the rough surface left by the coarse grit sandpaper.
Remove the rust from the door using a scraper and an electric sander with coarse grit sandpaper.
Acrylic latex exterior house paint is the best choice but be sure to choose a high quality paint.
Start with a wire brush photo 1.
Most metal garage doors come with a very hard kynar finish over steel that has been treated with zinc galvanizing.
Be careful not to scrub the door too deeply as it will leave scratches.
In most cases a single coat of paint is all it takes but keep in mind it could take more than one coat to provide good coverage if you re painting the garage doors a color that s lighter than the original color.
Due to its slick smooth surface metal can be challenging to paint and that can you ve got sitting around in the garage probably won t cut it.
However badly rusted metal areas need more prep work and possibly a special primer.
Repair dents or holes in the.
Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer.
Painting rust metal used to be a difficult and time consuming job.
If the door shows no sign of oxides then all it takes is a cleaning followed by a bonding primer like xim uma and then a finish coat of top quality acrylic house paint i prefer a semi gloss for clean ability.
Use latex paint and a synthetic brush applying the paint in long smooth strokes.
Now it has been made much easier with special primers such as rustoleum s rust reformer.
Step 2 apply sandpaper.
Once done you can paint over rust.
You can make a rusty steel door look like new and keep the rust from returning.
Talk about an open and shut case.
Plan to start your project on a cool day.
However you can repaint the door once you ve removed all the rust and cleaned the door.
To prep metal for paint adhesion you must first.
Remove rust sand and wash the surface before you paint the garage door.
On steel entry doors use a brush and exterior latex paint to approximate the painted finish of a wooden door.