"He who marches out of step hears another drum." ~ Ken Kesey
just another quick thought. make sure your platens are clean, new pallet tape is a given but you will see every damn nick and chip in your platens, strands of thread are the worst.
you should be fine with nylobond, you can always hit them with a little rubbing alcohol before hand to get any waterproofing off.
catalyst doesn't really lower the cure temp, but forces a cure over time, as well as 'eating into' any waterproof coating.