Foamtak Spray Adhesive is quite simply the fastest and easiest way to mount Auralex acoustical foam products. Unlike Tubetak Pro adhesive, which is more permanent and tougher to remove down the road, Foamtak can be applied lightly so that your foam is removable, or it can be applied heavily for a more permanent bond. Foamtak contains more actual solids than competing spray adhesives (you're getting more for your money) and uses a unique spray pattern, so it offers greatly improved long-term bonding power vs. other sprays, which virtually always dry out and fail over time. Foamtak is guaranteed not to oxidize Auralex acoustical foams and may be purchased in any quantity needed.