I Wire Ground It
Lee,I needed to do the same thing 2 years ago on my '85 H23. I used the interlux 2001 2 part epoxy solution. There's several threads here (I learned how to do it on this site). What I did though was to use a round wire grinder attachment to a drill and ground the keel down to a bright metal finish. I did find that I had places where the original white epoxy finish did was still in tack even with the grinding. I just left it and epoxied the 5-6 coats over it.2 years later, I have very small areas where rust appears (dime size) so I just spot treat it. This is sufficient for me.The moral is that I don't think you have to take the whole keel to bare metal, only the rusted and blistering (rust underneath) areas.Good luck,/Chuck MichelS/V Windsongs '85 H23