This marks the end of my infatuation with tire liners:
There seems to be no way to eliminate tube erosion at the end of the liner. I’ve tried tapering the thickness, taping the joint, and so forth and so on.
Fortunately, the tire went flat in the garage and I did a quick swap before our morning ride.
Searching for tire liner will reveal the rest of the stories, both good and bad.
The Smell of Molten Projects in the Morning 