----- Original Message -----
After some research, which also included using products already tested
by others before me, I elected to coat my fuel tanks with a product made by
Jeffco. Specially, Jeffco SPF9700-FCR. I built the strakes using
MGS, and then coated the interior with the Jeffco epoxy.
I
don't know how hard it would be to coat your tanks now, but it most likely
would solve your problem. You just paint the stuff on after mixing it
up. It's pretty thick, and tends to stick pretty well to vertical
surfaces. As I recall, I gave mine 2 or 3 coatings. I had zero
leaks when I pressure tested the
tanks.