Some harder-to-work-with applications of SheetBlok (such as ceilings) require an adhesive to temporarily mount the product until the finishing layers can be assembled. That's where SheetBlok-Plus Sound Isolation Barrier comes in. SheetBlok-Plus is a dense, limp-mass material that comes with a PSA (pressure-sensitive adhesive) already attached!</p><p>Just peel off the PSA backing and apply the SheetBlok Plus to the area to be covered and that's it! And while it's not meant to be a permanent mounting solution, it will easily hold your SheetBlok up until you're ready to put the finishing layers over it. SheetBlok Plus eliminates the hassles of troweled-on adhesives and mechanical fasteners and can save tons of time.</p>