I've only tried it once. It was an early 80s silver P-Bass logo. I had no instructions and I attempted to apply it like any other decal. It went on great and I was happy... but as it dried it started lifting at the edges and curling up. I tried to re-wet it and smooth it back down and it broke into pieces.
For one thing, it was really old (NOS) to begin with. For another, I later read that it takes a special adhesive solution, not just plain water.
So I really can't help other than to say that it takes some kind of special glue or procedure that I don't have or know.
Sorry!
Q. Are we not men?