QUOTE ( @ 2009-06-01)
What is the most common reason for welding of closure with induction seal to package (for a Peel Seal)? Over torquing and too high of output?

I assume we are talking about the cap sticking to the container after sealing. This could be due to overheating a foam backed liner and the foam is sticking. At times, the adhesive can “squeeze out” and adhere to the cap, which is typically a sign of overheating. If the foil is oversized, it could possibly seal itself to the cap near the threads.