All Weather White Aluminum Foil Tape

MT-A7729 is a high strength white aluminum foil tape used to primarily seal joints for foam core insulation boards.  It is coated with a superior performance flame retardant cold weather acrylic adhesive, and conforms well to surfaces providing a strong bond. This adhesive tape offers good reliability across both high and low temperature ranges. The paper release liner protects the adhesive from contaminants when the tape needs to be cut to specific lengths for use in tight spaces ensuring a strong bond once applied.

  • OL MT A7729 EN 856176005352 72mm55m 1
  • OL MT A7729 EN 856176005352 72mm55m 11
  • Kéven Poisson MT A7729 4022 lr
  • MT-A7729 All Weather White Aluminum Foil Tape 2.0 Mil | ECHOtape
  • a7729


  • Use to seal lap joints and acts as a vapor seal on Dow Thermax™ foil faced board
  • Use to join and seal flexible air ducts seams and connections

Features & Benefits

  • An initial quick stick helps speed up application
  • Low MVTR (Moisture Vapor Transmission Rate)
  • Mold resistant
  • Easy to remove paper liner


2.83 in x 50 yd | 72mm x 45,72m

Technical Data

Backing 2.0 mil White aluminum foil
Adhesive Acrylic
Release liner Siliconized paper
Total thickness 3.6 mils
Tensile 17 lbs/in.
Adhesion 72 oz/in.
Application temperature -4°F to 104°F ~ (0°C to 40°C)
Service temperature -31°F to 248°F ~ (-35°C to 120°C)
Color White
CLASSIFIED UL General Use Tape Surface Burning Characteristics 38MP - Applied to Inorganic Reinforced Cement Board
Flame spread 0
Smoke developed 0
Tested in both two 48 mm and two 72 mm wide longitudinal strips spaced 8 in (203 mm) on center. Tape coverage: 21 percent (48 mm) and 32 percent (72 mm) of the exposed test sample area.