There are a few different methods of doing this depending on how good of a job you want to do how much time and energy you have and how large of an area you are doing.
How to paint exterior steel siding.
Paint in long even strokes making sure not to overdo it.
How to paint steel siding.
The most common exterior painting method for aluminum and metal siding is brushing or spraying.
Clean the steel with a chemical degreaser.
Standard high quality 100 acrylic exterior paint is the best choice for painting aluminum and steel siding is most environments.
Pay special attention to the type of metal substrate.
Spray the surface with the solution then scrub it with a clean lint free cloth.
Then apply the primer to the metal siding in even strokes.
The first step includes cleaning.
Step 3 paint.
But i would use the oil based rust oleum primer which by the way takes forever to dry.
If you are striping a small area then you can do very well with a bucket of water that has some bleach and tsp in it.
Work from the top down to eliminate dripping paint from ruining your hard work.
The aluminum siding was a shade of beige that had aged into a dull mustard tone and the trim was a rust colored reddish brown.
The homeowners hated the look but the metal was still in decent shape and they didn t want the expense of re siding the entire house.
Start at the top of the wall and across the length of the metal siding.
Step 2 tackle rust.
When ready pour the primer into the paint container on the sprayer or pour the primer into the paint tray.
Proceed in small sections until you ve cleaned the entire surface.
You may also use a roller depending on the width of the siding.
There are many different types of factory applied coatings used on metal siding.
A new paint job was the solution.
That is how you can get the paint to adhere to steel siding.
If vertical paint up to down.
If your paint is dripping then you have too much.
Step 4 retouch.
Spot prime bare areas with a rust inhibitive primer such as diamond vogel s coteall multi purpose alkyd primer iron prime 600 fast dry universal primer.
Step 1 clean the steel siding.
If your siding is horizontal paint left to right.
And then i would use the rust oleum top coat.
Depends on the weather but three or four or five hours is not unusual.