DO NOT BUY FOR HVAC, this is paper thin aluminum tape; thinner than some construction tapes ["but now 33% longer"] and about half the adhesion. It has NO NAME, NO UL rating, no claims on temperature range or humidity, nothing printed on it. Easily torn or pierced. If you've ever used UL181 tape, you know what I'm talking about. I don't understand how this volume got five (5) stars. "Professional level" no. Without ratings, you will fail every frame or HVAC test. Hobby projects only.
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