Yes. Any well stocked hardware store or industrial supply carries it. Another option is Duct work tape. This is a thin gauge aluminum tape in 2" width used to seal insulated Duct work.
You will probably have to go to an HVAC specialty supplier or contractor to get this stuff. A word of caution though, like the grey duck tape, this will have a lot of glue that can ooze into the weld zone if not careful. Best bet is the fibreglass strapping tape.