Colphene ICF is used for vertical & horizontal waterproofing of polystyrene (extruded or expanded) insulated concrete forms. The underside consists of a release film and self-adhesive bitumen layer for adhering to approved substrates. It is a self-adhesive waterproofing membrane. Colphene ICF is composed of a proprietary high quality elastomeric styrene-butadiene-styrene polymer-modified bitumen blend and a polyethylene woven composite facer.