Getting tread yto dig out the seam sealer and attempt to do the rust
thing on the 90 GL.  I started digging some of it out last night, but
wondered what the ultimate tool for digging is? I have some skinny
hook tools that seem to be sort a getting it out. Also how do you
know if you have it all out?  I have several thin cutting wheels that
might get most of the rust and then a carbide 1/8" tip for the Dremel
to get the rest.  Anything else I need to deal with?  I have the POR
Seam stuff.  Wondered if judicious use of  a heat gun would coax it
out any quicker?  After  the POR paint sets up, any special tricks
for the application of the seam stuff?  Masking tape gap?

TIA

DM&FS