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Painting on metal

Folks

Doing some research about painting on stainless steel and galvanised steel. Came across this interesting post in an interesting blog.

July 11, 2010

A. Hi there, I own a company and we build metal art surfaces for artists. Aluminum is the most popular. We prep the surface with an orbital sander, 80 grit and some gold scotch brite to even the finish out. I've never had complaints concerning long term adhesion. Surface prep and cleanliness is the key with aluminum. We also do hot roll, cold roll, galvanized, and bonderized as well but always remind the artist that this is not an archival surface and will deteriorate to varying degrees depending on what conditions they may be exposed to. Ferrous metals should be sealed, the best clear coat I've found available in gloss and matte finishes is "permalac". It's expensive but this stuff is tough and made to handle weather conditions for extended periods. Also great for sealing copper and brass or bronze once the desired patina or tarnish is reached. Copper and Brass are great for mixed media folks who want to work with chemical patinas. Any metal surface that will have paint or chemical applied to it should always be given some "Bite" the chemical will react more uniformly and quickly and the paint, of course, will stay where you want it. Good luck everybody, with everything you do. Brian

Brian Fredella
innermetalworks.com - Bedford, Texas, USA

Denis


Summer

Comments

  • Hmmmm  I tried painting on galvanized with poor results for longevity. prewash with vinegar helped but doubtful for out door use. I didn't know about permalac then but sealed with automotive primer. 
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