CHIL-PERM® WB CP-35 is an effective, high performance, water based, vapor retarder coating designed for all interior and exterior, low temperature and some dual temperature applications. CHIL-PERM WB CP-35 is effective on all types of thermal insulations in both cold and dual temperature service. As a vapor retarder coating, it is safely used to vapor seal fittings, piping, and equipment insulated with mineral fiber, cellular glass, polyisocyanurate, polyurethane, polystyrene, phenolic, and even open cell polyethylene foams. It may also be used to seal the joints of foil-faced boards. 

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