Interesting. I have heard about this stuff for 50+years, with various methods. But, I used to use monokote on all my airplanes, and never sealed anything, and never had a hint of it peeling up. Even in the Fox 35 days where every square inch got soaked with oil.
The only thing I did that might be different is I "buried" the edges, that is, use a hot enough iron and enough pressure on the seams to push it down to the extent possible, with the adhesive leaching out a bit.
Brett