Using the McMaster door seals required me to sand back the edges of the door opening in the cabin top to an even 1/4″ from the inner surface of the door. Well, the outside of the edge is now exactly where I need it, but in the process, the edge itself became thinner than I need. The best way to get the edge of the opening to the exact thickness needed is to use the seal itself as a mold.
I mixed up some epoxy and flox, and filled the channel of the seal. I then stuck the seal on to the edge of the door opening. I then closed the door to make sure the seals were in the proper location, and wiped away the excess epoxy that had squirted out. Hopefully, when this cures up, I should have a perfect edge.

I like what you did here.
Did you have any difficulty getting the seal popped loose from the cured epoxy? Any release agent used? I’m assuming not, but thought I’d double check before trying this.
Thank you.
No problems with the epoxy sticking to the door seals. It really worked well, and there were just a few air pockets that needed to be filled after the fact.
Plan on getting ordering 2x the seal material that you think you’ll need, as you’re going to wreck this batch of seals with the epoxy!
Did you remove the angled lip inside the seal channel before you put the resin/flox inside the channel?