I purchased a custom Zero Edge aquarium that came with a very sturdy 3" tubular square stand. The bad part is the bottom has some significant rust build up. I have taken the time to grind down and wire brush the rust and am now at the point where it's bare metal. The stand has lots of rust pitting, but overall it has not affected the integrity of the stand, but simply cosmetic. I have used muratic acid and Krud Kutter rust remover, but still worried about the rust coming through a primer and paint job. Any suggestions on what precautions I should take when finishing the stand?