This can spell disaster.
Good primer for aluminum siding.
As long as the siding is clean you won t need to use a primer unless raw metal is exposed.
The problem is that there are quite possibly pinholes or cracks that are not visible to the naked eye where the old aluminum paint has worn off.
Flat white interior exterior aluminum primer spray 6 pack.
Acrylic primers provide a stable base while sticking to metal and not reacting to any oxidation on the siding.
Finally since metal is such a good heat absorber avoid painting siding while it s getting direct sunlight.
Rust oleum professional 15 oz.
If you prefer an acrylic primer you may do so use.
Remember that acrylic primer should only be used on acrylic paint.
I would use a water base dtm bonding primer on any bare spots.
You can use a cleaner specially designed for aluminum siding but a mixture of trisodium phosphate tsp and water works just as well.
How much does aluminum siding paint cost.
Some books and magazines on painting recommend that you prime aluminum siding and or paint over existing aluminum siding with water based primers.
You can add a cup of chlorine bleach to the mixture if your siding also has mildew on it.
Use the directions on the tsp package to mix the cleaner correctly.
Aluminum siding paint typically lasts from five to 10 years and aluminum siding is easy to paint.
Aluminum siding only needs to be primed if you have bare aluminum.