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.
Painting aluminum trailer siding.
The key to painting your rv s aluminum siding is to make sure that the paint you use will adhere to aluminum.
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.
Once everything is clean and dry you re ready to apply your primer.
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 preparation and priming.
Check the label to be sure it s recommended for metal siding.
It goes on nice and smooth and covers beautifully without the uses of an added primer or extra coats.
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.
The best way to get this siding clean is to power wash it.
Expect to pay the premium for good paint.
With that said i have had pretty good success with behr marquee exterior paint and primer in one.
Painting aluminum siding with painter s tape and lengths of plastic sheeting protect items and areas adjacent to the siding.
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.
You must take a few extra steps if you want the paint to continue to look good down the road.
Then wash your rv and let dry.
Once you have completed the paint job remember to remove the tape as.
Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction.
How to paint aluminum rv siding.