Gorilla tape is an ultra tough cloth tape made from 3 layers a double thick adhesive layer a strong reinforced backing and a tough all weather shell the double thick adhesive is a high quality adhesive that will allow the tape to stick to rough porous and imperfect surfaces the thicker the adhesive the better the strength the strong reinforced backinghas a high fibre count cloth backing that gives high strength but can be ripped easily by hand the tough all weather shell gives a tighter barrier