used to have to repair dents and tares in cargo bin floors with an epoxy . common practice was to put the A part and B part tubes on the windshield defroster vents with the heat on high of the pickup . the epoxy would be so thin that it would run out of the tubes after it got up to temp. only problem was you would have about a millisecond after the A and B were mixed to get it in place before the epoxy set up