Good Primer For Aluminum Siding

Acrylic primers provide a stable base while sticking to metal and not reacting to any oxidation on the siding.

Good primer for aluminum siding.

Finally since metal is such a good heat absorber avoid painting siding while it s getting direct sunlight. If you prefer an acrylic primer you may do so use. Painting aluminum siding faqs how long does paint last on aluminum siding. Remember that acrylic primer should only be used on acrylic paint.

Aluminum siding only needs to be primed if you have bare aluminum. 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 use a cleaner specially designed for aluminum siding but a mixture of trisodium phosphate tsp and water works just as well. Aluminum siding paint typically lasts from five to 10 years and aluminum siding is easy to paint.

I would use a water base dtm bonding primer on any bare spots. I would use water base because unlike oil base it won t become brittle and crack down the road it will expand and contract with the siding and it can also withstand heat better than oil base. As long as the siding is clean you won t need to use a primer unless raw metal is exposed. You can add a cup of chlorine bleach to the mixture if your siding also has mildew on it.

Rust oleum professional 15 oz. Use the directions on the tsp package to mix the cleaner correctly. You should not use latex primer because most of the time it contains ammonia. 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.