The 3.5 mil, high strength aluminum foil conforms well to both fibrous and sheet metal ducts, for an excellent vapor seal. This malleable foil is coated with an aggressive acrylic adhesive system, and conform.The 3.5 mil, high strength aluminum foil conforms well to both fibrous and sheet metal ducts, for an excellent vapor seal. This malleable foil is coated with an aggressive acrylic adhesive system, and conforms well around corners and to irregular surfaces. Perfect for use under all weather conditions; This foil is designed for maximum adhesion over clean, dry surfaces while resisting water vapor, odor and smoke transmission.The adhesive is protected until the liner is removed, for ease of application.
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