COLPHENE® 250 FR GR (fire retardant, granulated) is an SBS-modified bitumen cap ply for use in approved multi-ply membrane waterproofing assemblies. COLPHENE 250 FR GR is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a tough, dimensionally stable non-woven polyester mat. The topside is surfaced with ceramic coated granules and the underside is surfaced with fine mineral aggregate to facilitate cold adhesive and hot asphalt applications.
Prior to installation, unroll COLPHENE 250 FR GR onto the surface and allow to relax. Place COLPHENE 250 FR GR in desired position and back roll the product. Apply approved cold adhesive or hot asphalt following manufacturer specifications. COLPHENE 250 FR GR is then rolled into the cold adhesive or hot asphalt and subsequently broomed in if utilizing hot asphalt or rolled with a weighted roll if utilizing cold adhesives. Refer to SOPREMA® specifications and installation instructions for additional application guidelines.