Some paints claim they are fine to use on bare aluminum and may work fine in some applications but if you want the finish to last do the preparation correctly.
Painting aluminum trailer siding.
After that tape off anything you do not want covered in paint.
The best way to get this siding clean is to power wash it.
The key to painting aluminum siding is preparation and priming.
Check the label to be sure it s recommended for metal siding.
Expect to pay the premium for good paint.
How to paint aluminum rv siding.
All of the chalkiness must be washed and scrubbed off and any flaking paint removed.
You must take a few extra steps if you want the paint to continue to look good down the road.
With that said i have had pretty good success with behr marquee exterior paint and primer in one.
Then wash your rv and let dry.
Once everything is clean and dry you re ready to apply your primer.
Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction.
Painting aluminum siding with painter s tape and lengths of plastic sheeting protect items and areas adjacent to the siding.
If you need to paint aluminum siding choose a day when the weather is at least 50 f 10 c and dry since moisture from rain or dew will ruin a new paint job.
Painting an aluminum trailer starts with some preparation because aluminum by itself does not allow the paint to adhere very well.
The key to painting aluminum siding is to get it really clean and to use 100 percent acrylic latex paint.
In a nutshell you need to start with a clean palette.
It goes on nice and smooth and covers beautifully without the uses of an added primer or extra coats.
Finally use an aluminum oxide primer before using a good acrylic latex paint.