Paint Chalking Aluminum Siding

Second primer creates a uniform surface that is ideal for paint adhesion.

Paint chalking aluminum siding.

Scrub off the chalk with a strong solution of water and spic and span or tsp detergent or a nonphosphate tsp alternative. If your aluminum siding has developed a chalky residue or is faded stained or just plain the wrong color fear not. There are several steps in dealing with a chalky surface to ensure a long lasting paint. This particular brush has a hole in the end for water to pass through.

Oil based paints tend to chalk more than latex formulations. Then paint with two coats of acrylic paint. Aluminum should be painted with a self etching primer designed for metal. It doesn t take much effort to scrub away the debris once the tsp has loosened it up.

This is called chalking and essentially is the existing paint breaking down from the weather. Use of an interior paint for an outdoor application. One of the hardest surfaces to prep is a aluminum or vinyl siding that is chalky. This primer will cover up the chalk and allow the new paint to bond with the aluminum siding.

A siding brush has soft bristles that won t scratch the paint or gouge the aluminum like other hard brushes. 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. Steps for painting aluminum siding 1. Factory finished siding can develop an excessively thick chalk layer and may require power washing to ensure complete chalk removal.

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. The key to painting aluminum siding is to get it. First it seals the aluminum to prevent the chalky oxidation from happening under your paint. If the paint color comes off on your hand the paint is chalking.

Primer is one of the most important steps when painting aluminum siding. Some exterior paints such as those used on aluminum siding intentionally chalk for self cleaning. Here s how to prepare the surface and choose your paint. Rub siding with cloth to check for powdery paint pigment and mildew.

Chalky surfaces will cause the paint not to adhere correctly to the surface and will cause premature peeling. Use of a low grade highly pigmented paint. You can paint it. Wipe the surface with the palm of your hand.

Have you ever wondered if you can paint aluminum siding. One of the most important aspects of a paint job is the prep work. The primer should be 100 percent acrylic and specifically manufactured for outdoor painting. 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.

In this video toh expert shares his tips and demonstrates how you clean and prepare the surface for painting. Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction.