Or do gorillas even eat bananas? I don't know, but this stuff will get the job done. I've only used if for outside applications. First was to add some extra seal to an antenna run around the rear glass window of my car for a scanner ("police scanner") antenna. Second usage was for some coaxial feed through bushings that you use to pipe coaxial cable though your external walls. So far, so good. But I did adhere (get it?) to the instructions not to apply this stuff under 40 degrees Fahrenheit. At least that's what I remember it saying on the label.Clean up is a pain. I use a cotton swab to get as much adhesive out of the funnel-like applicator that screws onto the bottle (can't remember the name now). I don't want that stuff drying like a rock and I have to cut the tip like you'd do with caulking. It's a real pain.