[This review was collected as part of a promotion.] I had a new furnace put in and the techs told me to go around the ducts and seal up any areas where it looked like there was some space at connections. I am glad I got this tape because there are some spots where there is space that can reduce heating ability. It works very well.
[This review was collected as part of a promotion.] We had to tape our joints for our hot air vents. This was easy to use. The adhesive worked great on the joints. It also looked good after we installed it.
[This review was collected as part of a promotion.] I gave it five stars because it adhered very well, and I trust the 3M brand. I used it on some ductwork that needed touched up. Simple to use stuck very well.
I used it for gaps in my wood stove stack near where it exits through the ceiling. It works for part of a winter, but if you over fire your stove, of course it will let loose. I found it very sticky. Previous reviewer must have gotten a bad or very old roll.