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The Nashua 1787631 foil mastic tape is a UL18181B-FX rated, foil-faced mastic tape designed for HVAC duct sealing and repairs. It is supplied on a 2 in x 100 ft roll and features a foil-faced backing with pressure-sensitive adhesive for sealing rigid and flexible ductwork, including flexible air duct connections. The tape has a 17 mil thickness and is intended for use in HVAC installation and ductwork maintenance.
UL18181B-FX foil mastic tape; 2 in x 100 ft roll; 17 mil thickness; for HVAC duct sealing and repairs
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