Caveat: I am not a HVAC specialist. Task of the tape was to dissuade a misplaced in many curves cold water pipe from, distribute condensation in the basement. I compare the band with a role from the hardware store, I had to buy myself lack spare roll. The tape is stuck in such a way that I've ripped two small skin of your fingers ... At the same time it is aussreichend flexible and soft to get into the small branches of shut-off valves. The DIY band, however, is rather brittle and had to be reworked in some places with liquid adhesive after 2 days. Will buy myself this band for the next action again.