Dyn-O-Coat combines the flexibility of sealants with the quick drying advantage of aerosol to bring you a highly efficient Edge Coating. Simply spray on to encapsulate rips, tears and cut edges. This prevents fiberglass strands from torn insulation to enter into the airstream. Dyn-O-Coat dries quickly to a matte black finish to match most perma-coat liners on the market today. It is ideal for use on internally lined ductwork, fiberglass duct wrap and rigid fiberglass duct board.