Good Primer For Aluminum Siding

Aluminum siding only needs to be primed if you have bare aluminum.

Good primer for aluminum siding.

You can add a cup of chlorine bleach to the mixture if your siding also has mildew on it. 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. As long as the siding is clean you won t need to use a primer unless raw metal is exposed.

Use the directions on the tsp package to mix the cleaner correctly. How much does aluminum siding paint cost. 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. Finally since metal is such a good heat absorber avoid painting siding while it s getting direct sunlight.

Remember that acrylic primer should only be used on acrylic paint. Rust oleum professional 15 oz. You should not use latex primer because most of the time it contains ammonia. Some books and magazines on painting recommend that you prime aluminum siding and or paint over existing aluminum siding with water based primers.

This can spell disaster. If you prefer an acrylic primer you may do so use. 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. I would use a water base dtm bonding primer on any bare spots.