Hi All
At Boyers, the sealing tape was called 'Black S##t'. That was the common name for it in the workplace, 'Matt, throw down a roll of .....'
It was a black mastic tape, it was like Blu Tac almost, came in a roll and sandwiched between plastic.
The actual vacuum bag was just a clear poly film that was already sealed down both edges, just had to seal up the ends, and around the outlet.
Regards
Matt