West Marine sells the 5200 remover, Anti-bond. I used it before with success on my exhaust trim rings. If you can get a putty knife started in the joint, spray some of the Anti-bond in there and let it soak. It softens the 5200. Work a little bit at a time.

DeBond 2000® Marine Formula

http://www.debond2000.com/marineform...ove%205200.htm

never used it myself

Bob,
Goof Off works which you can buy at your local Lowes, Wal-Mart. It works better then what West Marine sells to remove it and doesn't hurt your gel coat.
Your best bet as mentioned above is to work be hind it with a putty knife or wedge of some sort and get as much of the Goof Off behind as you can. Leave it set for about 5 or 10 min and start working it off.
Good luck

Thanks for all the replies. Looks like I have a couple of options now.

The stuff from West Marine does work. I also used piano wire to "saw" back and forth through the stuff. I came up with the piano wire idea after I pulled some of the gel off with the first tab I removed. Take your time. It is the most challenging part of stripping the transom.

what are you using for paint?

test

Hey Mr. Oneil,
if any of the gel comes off, howz about we go ahead and pull that transom assembly off, water pickups and those Mercthadone thingys off also. Clean that puppy up.
Lets DO IT! I have come-along!

just wanted to bring this ttt and say for you guys approaching 5200...it's all about heat, heat, heat!

Ran a propane torch around on the flange of my stock thru-hulls for 5+ minutes or so, then with a thin angled edged 1.5" putty knife tapped in with a light hammer around under the flange. Then heated up again for good measure...and BINGO slid out like butta...

NO gelcoat damage. I have some to clean up off the gel, but will be careful, and use the heat GUN for that.

I bought the 5015 at West...It appears to me to be BS.

It's all about HEAT.

piano wire works //saw it off