This allegedly indoor/outdoor product held a thin, feather-weight piece of foam for less than an hour indoors. Adherence failed on both the ceiling and smooth aluminum. The product is thin enough to see through and has zero of the insulating properties of real duct tape. I ordered it because it said "duct" not "duck" and because it said "professional." It is not for ducts and is not professional in any way.
Strong & Wide White Gorilla Duct Tape, 2.88" X 25 Yd, Pack Of 1
24 Review
TapePlus Gaffer Tape - Large 2 Inch X 40 Yards Roll - Versatile Black Tape For Gaffers, Ducts, Floors, And More
31 Review
Gorilla Tough And Wide Silver Duct Tape, 2.88" X 25Yd - Pack Of 1 For Superior Strength And Durability
23 Review
Gorilla Crystal Clear Repair Tape, 1.88” X 9 Yd, Clear, (Pack Of 1)
32 Review