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Live in SW Florida. Aluminum post supporting carport is peeling paint. How to prepair post

One of the aluminum posts supporting our carport has started peeling paint.  what do we need to use to remove paint and prepare surface for repainting and what kind of primer/paint do we need to get. It gets very hot and humid in our area.

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Posted 2013-05-07T01:19:57+0000  by NGW NGW
 

NGW,

 

Paint may be stripped from aluminum with the use of chemical strippers, much the same as when stripping wood.

 

Once stripped,, you should use one of the "self-etching" primers. Aluminum does not take paint well if it has not either been chemically etched, or abraided with fine emory paper or sand paper. Home Depot does carry spray cans of self-etching aluminum primer by RustOleum. After priming, the post can be painted with either an oil or acrylic paint. Acrylic paints  due especially well on aluminum due to its elastic nature. Aluminum can be subject to expansion and contraction with changes in temperature, as when the sun suddenly shines on it. Oil paints, by their nature, are much more ridgid and inelastic, therefore more prone to peeling if the metal is moving.

 

Hope this has helped.

Posted 2013-05-07T06:02:10+0000  by ordjen
 
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