Double MEGATAPE is a permanently flexible upstand, for use as a first fix solution to form a 100% waterproof seal between sanitary ware and adjacent walls. Its unique self-adhesive bitumen strip on both sides of the tape means it adheres to your sanitary ware and the wall without the need for any other adhesive. Can also be used in other areas for example between kitchen worktops and walls. Double MEGATAPE can accommodate vertical movement of up to 30mm and still maintain a waterproof seal making it ideal for all applications including new builds where settlement and movement is likely. Due to its thin and very flexible make up, it fits neatly into corners so as not to kick out your tiles especially when using small tiles or mosaics.