Review on High Tensile Strength Duct Tape Silver, 5.8mils, 2 Inches x 50 Yards - All-Weather Duct Repair Tape for Commercial Use, Heavy-Duty Repair, Packing with Temperature and Shear Stress Resistance - XFasten by Jason Pinkney

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.