"CCred68046" wrote in message
...
Im in the process of restoring a very old (1960) 8' aluminum boat. There
is
some kind of brown sealer in all the seams that is cracked and brittle.
After I
scrape all that stuff out, whats the best thing to seal it back up with?
TIA!

3M 4200 but use the quick set version and do it from the outside.

You might also want to consider epoxy resin with a little bit
of glass - just enough to cover the joint - sand and paint as
needed.

When I did the 10 footer that I use in small ponds, I used
both - doesn't leak.

Later,

Tom