aluminum painting

[rellimmm]

I make aluminum tool boxes....they tarnish quickly from raod salt...what clear protective coating can i put on it, and how do i prep the aluminum.......

ty

 

[CoryPad]

Aluminium alloy wheels for automobiles use an acrylic powder coating to resist corrosion due to road deicing salts. This should work well for you. A typical procedure would be:

alkaline cleaning to remove oil, grease, etc.
chemical conversion coating
powder coating

Try contacting DuPont for more information:

http://www1.dupont.com/NASApp/dupontglobal/corp/products/prodDetail.jsp?nodeID=3192

Regards,

Cory

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