Painting Over Chalky Aluminum Siding

Chalky surfaces will cause the paint not to adhere correctly to the surface and will cause premature peeling.

Painting over chalky aluminum siding.

You can paint it. This primer will cover up the chalk and allow the new paint to bond with the aluminum siding. Coat your roller in primer and roll quickly and evenly along the panel of siding then roll backward in the opposite direction. One of the hardest surfaces to prep is a aluminum or vinyl siding that is chalky.

One of the most important aspects of a paint job is the prep work. If your aluminum siding has developed a chalky residue or is faded stained or just plain the wrong color fear not. Over thinning a coating e g. Chalking due to oxidation is the paint s natural response to sunlight.

There are several steps in dealing with a chalky surface to ensure a long lasting paint. Expect to pay the premium for good paint. Once you have completed the paint job remember to remove the tape. The primer should be 100 percent acrylic and specifically manufactured for outdoor painting.

Not adequately sealing a porous surface. With painter s tape and lengths of plastic sheeting protect items and areas adjacent to the siding. 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. Use of a low grade highly pigmented paint.

Spreading the paint too thin. A dull chalky paint finish comes off when touched and makes a home s exterior paint job look dated. 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. Factory finished siding can develop an excessively thick chalk layer and may require power washing to ensure complete chalk removal.

In this video toh expert shares his tips and demonstrates how you clean and prepare the surface for painting. It was a popular choice among homeowners until the 1970 s when the manufacturing costs had significantly increased and vinyl siding had proven itself to be the. Steps for painting aluminum siding 1. Use of an interior paint for an outdoor application.

Check the label to be sure it s recommended for metal siding. This is called chalking and essentially is the existing paint breaking down from the weather. Before you paint aluminum siding clean the surface thoroughly and prime the siding with one coat of acrylic primer. Then paint with two coats of acrylic paint.