Tape for UTH

My uth's keep loosening up.Do you guy's think it would be dangerou's to put grey tape on each side to keep them in place? I read somewhere that most use the tape for flexwatt.Can't wait to make the switch over to flex.(The grey tape I'm talking about is the very strong one used for moving etc.)

I have a heck of a time getting the metal tapes to stay stuck so I myself have been using duct tape with no problems. Don't know if it's right but it works.

Can't stand to see when it just peel's off .

Foil tape works on anything. You can pick up a roll at Wal-mart. I use this stuff for my heat tape, to hold my thermostat down... anything that needs to stay put.

i use electrical tape and it works quite nicely.

Sound's good I think I'm going get the electrical tape.Thank's everyone.