SOPRASEAL Stick 1100T is a self-adhered waterproofing membrane. SOPRASEAL Stick 1100T is composed of a proprietary high quality elastomeric styrene- butadiene-styrene (SBS) polymer-modified bitumen blend and a woven polyethylene composite facer. SOPRASEAL Stick 1100T is used as a self-adhered air, vapor and rain barrier on vertical walls of masonry, concrete or gypsum sheathing designed to be used as a base for exterior insulation and finish systems (EIFS). SOPRASEAL Stick 1100T may also be used as a transition membrane at doors, windows, penetrations, etc. The underside consists of a self-adhesive bitumen layer protected by a release paper.