All of the chalkiness must be washed and scrubbed off and any flaking paint removed.
Painting aluminum trailer siding.
Check the label to be sure it s recommended for metal siding.
The key to painting aluminum siding is to get it really clean and to use 100 percent acrylic latex paint.
If you are painting straight over an aluminum sided trailer you will want to use a primer that is meant for direct to metal application.
Once you have completed the paint job remember to remove the tape as.
The key to painting aluminum siding is preparation and priming.
With that said i have had pretty good success with behr marquee exterior paint and primer in one.
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.
The best way to get this siding clean is to power wash it.
Once everything is clean and dry you re ready to apply your primer.
How to paint aluminum rv 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.
It goes on nice and smooth and covers beautifully without the uses of an added primer or extra coats.
Then wash your rv and let dry.
You must take a few extra steps if you want the paint to continue to look good down the road.
Painting aluminum siding with painter s tape and lengths of plastic sheeting protect items and areas adjacent to the siding.
In a nutshell you need to start with a clean palette.
After that tape off anything you do not want covered in paint.
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 your rv s aluminum siding is to make sure that the paint you use will adhere to aluminum.