Gaffer's tape is that stuff that looks a lot like duct tape but isn't, that gets used all over the place in theatre or amplified live music (and also gets used in photography to hold wires for lights out of the way, or to hold anything else that needs temporary sticking to something else). If you see mic cables or a snake taped down so people won't trip, the tape used should be gaffer's tape.
It doesn't leave gunk behind when you peel it up, and it won't damage a lot of surfaces. It's not as safe for fragile surfaces as some kinds of tape I've seen specifically for hanging posters (especially if you leave it stuck for months at a time as I intend with the window-plastic, instead of hours for a concert), but it's also stronger than the poster tape I've seen, and wider.
The Wikipedia article defines it as a cloth tape, and most gaffer's tape I've seen has been cloth, but I've also seen paper gaffer's tape ... which sucked.
(no subject)
It doesn't leave gunk behind when you peel it up, and it won't damage a lot of surfaces. It's not as safe for fragile surfaces as some kinds of tape I've seen specifically for hanging posters (especially if you leave it stuck for months at a time as I intend with the window-plastic, instead of hours for a concert), but it's also stronger than the poster tape I've seen, and wider.
The Wikipedia article defines it as a cloth tape, and most gaffer's tape I've seen has been cloth, but I've also seen paper gaffer's tape ... which sucked.