Polyken® - Foilmastic tape is a superior closure and sealing system for use with flexible air ducts and air connectors, plus sheet metal systems.
Increases energy efficiency
UL 181-B-FX listed
Passes SMACNA 1/2", 1", 1", 4", 6" and 10" w.g. pressure classes and seal classes A, B and C (results confirmed by the SMACNA Research & Testing Institute) for sealing rigid sheet metal duct systems Superior quality and installed performance. Shows excellent resistance to mold growth, humidity, flame spread, smoke generation, and the effects of high temperatures. Manufactured by the recognized leader in the HVAC industry. Repositionable initially but becomes a permanent seal over time. Extremely conformable.