Hey Jesse,
Sounds like PL5200. Strongest stuff in the world. Just about impossible to
remove. You might make a hack saw frame but with the blade at 90 degrees to
a normal one. Slowly cut between the cabin roof and tabernacle. At some
point you can apply a rotational motion and should get it off.  You will
Have an ugly scarred area. Research to see if they have come up with a
solvent for 5200. If so, use that rather than the butchery method. Good
luck.

Chris Geankoplis
Enosis.

On Mon, 26 Oct 2020 at 21:51, Jesse Shumaker <jesse.laten.shumaker at gmail.com>
wrote:

> Hi, I'm attempting to remove the mast tabernacle in order to install the
> Dwyer Halyard Organizer plate (part DH288).  The three screws came out
> easily, but the tabernacle is still attached very strongly with an
> adhesive.  I don't know what adhesive was used.  The adhesive is colored
> white.  I tried heating up the plate with a soldering iron and tried to
> squeeze in a razor but have been unable to break the seal.
>
> I would appreciate any tips from the group on how to free the tabernacle
> from the cabin top.  Thanks in advance for any advice!
>
> Jesse Shumaker
> S/V Zephyr
>