Polyken 347 Premium Foil Tape

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Polyken® 347Premium Foil Tape – Heavy Duty
Aluminum foil for sealing and masking of aircraft. Aircraft sealing and masking applications. Used as a window mask to protect aircraft canopies, windshields and passenger window surfaces from crazing and/or hazing during paint stripping operations. Heavy duty vapor barrier sealing for sheet metal, flexible, and fiberglass duct systems.


  • Aluminum Foil Backing provides a vapor barrier from moisture, contamination or corrosion.
  • Acts as a heat shield, minimizing heat transfer.
  • Superior conformability to adhere to irregular surfaces.
  • Acrylic Adhesive System developed for solvent resistance and clean removal from surfaces.
  • High adhesion - adheres tightly without lifting.
  • Excellent aging resistance with long-term bond performance.
Adhesive Proprietary Acrylic
Backing Aluminum Foil
Liner Kraft Paper
Adhesion to backing (PSTC-1) 22 oz/in / 24.5 g/mm
Adhesion to steel (PSTC-1) 50 oz/in / 55.8 g/mm
Elongation 8%
Foil Thickness  (ASTM D-1000) 5.5 mils / .1397 mm
Maximum Temperature (ASTM D-1000) 2000F / 930C
Tensile (ASTM D-1000) 26 lb/in  /  0.46 kg/mm
Thickness (ASTM D-1000) 3 mils / 0.762mm
Specifications FAR 25.853 (a)

Note: The above are typical values and should not be used in writing specifications

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Kiepura Aviation Corp.
61 Church Street | Littleton, NH 03561
USA Supplier, Stockist and Exporter of Aircraft Maintenance Tapes
Phone: 603 444 3459 | 603 444 3336 | Fax: 603 444 0790 | Mobile: 917 573 0239 Toll Free in the USA and Canada | 888 KAC TAPE - 888 522 8273