It would be a little embarrassing to have your foam panels or diffusers fall down during a session wouldn't it? Tubetack Pro will keep them up permanently. It fits into a standard caulk gun or Auralex's Tubetak Applicator (available separately) and it's guranteed not to oxidize, i.e. eat, your foam panels. It also non-toxic so it's able to be air shipped to you when you need it in a hurry.

MPN: TTPRO
UPC: 818105003631

One tube will mount 32 ft/sq of panels or diffusers depending on thickness.