INSTA-STIK™ roofing adhesive for professionals has been developed for the attachment of insulation boards and single-ply polymeric waterproofing membranes to a variety of substrates on flat roofs. Single-ply membranes have to be fleecebacked. The compatibility of these membranes to any adjacent layer must be proven. INSTA-STIK is offered as a portable, pressurized container requiring no external power source. It is a cold applied system that is, quick, easy to use and provides fast adhesion.