"Tim Hickey" wrote

noticed that there is a small flake of sealer that has cracked loose
from the rest. Further examination shows that there are areas that
look like small blisters are forming under the sealer. I suspect that
this is not an unusual problem, as I seem to recall that others have
had this problem also. The question I have, is what to do. It seems to
me that the tanks need to be removed, (big job), and the sealer
flushed out of there. I seem to recall that some were using MEK to cut
and remove the sealer. Does this seem like the thing to do?
Advice welcomed

Man, I have no advise, but I feel your pain. Sounds like an ungodly job.

I can't help that feel sloshing is a shortcut, in many cases, to make a job
easier. It looks as though it does not pay off in the long run, for some.
(at least)

Aren't there better solutions, in nearly all cases? Fiberglass needs to
seal pinholes, why not use the same stuff the lay-up uses? Wet wings can
use sealant on seams and rivets? Metal tanks need to....to be welded
without leaks?

Just trying to anticipate a major headache.
--
Jim in NC