One bit of clarification I uncovered today while visiting the Rustoleum / Tremclad web site, on their Q & A page... is that according to the folks at Tremclad / Rustoleum YOU CAN PUT THEIR CLEARCOAT OVER THE ALUMINUM PAINT.

I assume that this works only when you use TremClad's clearcoat over a Tremclad color or metalic paint. Non-Tremclad clearcoats might not work ( although they don't specifically say that )

The other chap in an earlier message had posted that it had been his experience that the clearcoat separated from the aluminum paint. So either a different brand of clearcoat might have been used in his situation... or maybe the preparation procedure was not followed as per Tremclad's recommendations.

Just thought I would add this bit of info for anyone who wants to experiment with the clearcoats on the aluminum Tremclad.