Sealing a Pitted Aluminum Tank with Epoxy Primer

I have found some pitting along the bottom of an aluminum tank were water had been acumulating then unfortunately caused some fuel to weep out. I can see that the most optimal repair would be cutting out the rotten material and replacing with new. I can't do that right now so I had preped and cleaned the area as well as possible and smeared some belzona in the pits. After doing some research on my repair, I found an article stating that it is a good idea to epoxy primer bare aluminum to stop any farther corrision. I then had a hard time finding any articles about what exactly is epoxy primers for aluminum. Can any one out there school me in on some info on how to locate a good epoxy primer and the right primer I would want to use for the situation that I am in now. Any other experiences with this sort of problem would also be appreciated.

Hey Gary,
I appreicate you posting your reply. Unfortunately my belzona repair did not hold up and I will not be painting the area now. This has become a ship yard project for sure now. Loads of things need to be removed for access and for weilding and cutting.

That is such a scary thought but I so much agree about the other tanks. This vessel is about 8 years old and only has like 2500 hours on the mains. She does spends lots of time at the dock and slowly releasing all her little alumimum atoms to those more noble theiving alloys.