Paint Chalking Aluminum Siding

Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction.

Paint chalking aluminum siding.

Not adequately sealing a porous surface. This is called chalking and essentially is the existing paint breaking down from the weather. Primer is one of the most important steps when painting aluminum siding. Wipe the surface with the palm of your hand.

Second primer creates a uniform surface that is ideal for paint adhesion. There are several steps in dealing with a chalky surface to ensure a long lasting paint. The primer should be 100 percent acrylic and specifically manufactured for outdoor painting. Scrub off the chalk with a strong solution of water and spic and span or tsp detergent or a nonphosphate tsp alternative.

Steps for painting aluminum siding 1. It doesn t take much effort to scrub away the debris once the tsp has loosened it up. If after two tries of hand scrubbing or power washing there is still chalk on the surface simply use a primer before repainting the aluminum siding. Then paint with two coats of acrylic paint.

Aluminum should be painted with a self etching primer designed for metal. This primer will cover up the chalk and allow the new paint to bond with the aluminum siding. Inspect the siding for mildew powdery paint pigment and mildew. Use of an interior paint for an outdoor application.

If your aluminum siding has developed a chalky residue or is faded stained or just plain the wrong color fear not. In this video toh expert shares his tips and demonstrates how you clean and prepare the surface for painting. This oxidation that occurs on aluminum siding results in the build up of a chalk like substance on the siding itself which can easily be seen by wiping your hand across the aluminum. First it seals the aluminum to prevent the chalky oxidation from happening under your paint.

Chalky surfaces will cause the paint not to adhere correctly to the surface and will cause premature peeling. Factory finished siding can develop an excessively thick chalk layer and may require power washing to ensure complete chalk removal. Use of a low grade highly pigmented paint. Have you ever wondered if you can paint aluminum siding.

Here s how to prepare the surface and choose your paint. The key to painting aluminum siding is to get it. You can paint it. A siding brush has soft bristles that won t scratch the paint or gouge the aluminum like other hard brushes.

One of the most important aspects of a paint job is the prep work. If the paint color comes off on your hand the paint is chalking. One of the hardest surfaces to prep is a aluminum or vinyl siding that is chalky. This particular brush has a hole in the end for water to pass through.

Some exterior paints such as those used on aluminum siding intentionally chalk for self cleaning. Oil based paints tend to chalk more than latex formulations.