Vapor retarder sheet membrane (C.I Wrap)
Foster C.I. Wrap™ 50 is a heavy duty 50 mil flexible vapor retarder sheet membrane. It is comprised of a synthetic, rubber modified asphalt laminated to a tough polymer film and a treated peel and stick release liner. It is available in 4” and 36”* widths. C.I. Wrap™ 50 is used to provide a protective, moisture and vapor retarder film over cold and cryogenic piping and equipment insulation. It may be used over thermal insulation including cellular glass, polyurethane, polyisocyanurate, polystyrene, rigid fiberglass and others. C.I. Wrap™ 50 is used for direct burial underground and jacketed above ground applications. It provides a factory controlled film thickness and fast, labor saving application. The membrane is elastomeric allowing for expansion and contraction of the insulation system. It is self-healing and forms a strong bond to the substrate and the sheet overlaps.
