As good as latex primers are these days don t use them in this situation because chemicals in the mix will react with the aluminum.
How to paint over old aluminum siding.
You may want to tint the primer with a lighter hue of the finish color for easier color application.
The best way to get this siding clean is to power wash it.
Draw a square around the section of damaged aluminum siding that you would like to remove.
In a nutshell you need to start with a clean palette.
Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction.
Add one pint of paint thinner to the gallon of oil based metal primer paint.
The key to successful painting of aluminum siding is oil base primer.
Once everything is clean and dry you re ready to apply your primer.
That said the paint itself should be the highest grade of 100 acrylic exterior latex you can find.
The key to painting aluminum siding is to get it really clean and to use 100 percent acrylic latex paint.
Expect to pay the premium for good paint.
Apply one coat of acrylic primer.
Or you could wash it by hand with tsp or a similar product available at home centers and paint stores and rinse it thoroughly.
Paint aluminum siding with acrylic.
Then follow up by two coats of acrylic topcoat paint.
Use it on the siding and you may find that using this sands down to the bare metal which would be the ultimate prep job.
Cut away the section using tin snips in combination with a utility knife leaving a clean square hole to patch.
Since the oil paint does not cause a reaction with the siding this paint will act as a barrier between the aluminum and the acrylic finish paint.
Check the label to be sure it s recommended for metal 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.
Follow these simple steps.
All of the chalkiness must be washed and scrubbed off and any flaking paint removed.
Have you ever wondered if you can paint aluminum siding.
The key to painting aluminum siding is preparation and priming.