Forum Discussion
Mootpoint
Mar 12, 2014Explorer
westend wrote:
Prepainted aluminum sheet goods is usually a vinyl coating.
To paint the bare aluminum, it's necessary to use either a pre-paint etching wash or an etching primer. I use a phosphoric acid based cleaner and Sherwin-Williams DTM Industrial acrylic primer. It's listed to prime bare aluminum.
After priming, any paint will work. A good choice would be an epoxy or oil enamel for a DIY job.
I was in the paint industry or 20 years before I retired. While not familiar with the brand the procedure is correct. Just make sure whatever primer you use is suitable for the chosen topcoat. Sometimes the chemicals used to activate the epoxy will "eat" the primer.
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