All Weather White Aluminum Foil Tape

MT-A7729 is a high strength off 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.


  • Use to seal lap joints and acts as a vapor seal on 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

Storage & Usage Conditions

Store tape in its original packaging away from direct sunlight and in a cool and dry area. For optimum performance, tape should be used within 12 months of date of shipment. Tape works best when applied to a surface that is clean, dry and free of grease, oil or other contaminants.


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

Technical Data

Carrier 2 mil Off 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 Off 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.

The information cited is in good faith and has been established from sources held to be secure and reliable. The values listed are typical properties. Individual rolls may vary slightly from these values. All ECHOtape products are warranted to be free of defects at time of shipment. Many factors can affect the use and performance of a product in a particular application and the user must, by test or otherwise, determine suitability for purpose; Edelstein makes no representation or warranty, express or implied, concerning any application and usage if its products. If ECHOtape product is proved to be defective, the exclusive remedy, shall be for Edelstein to replace the defective product. ECHOtape shall not otherwise be liable for loss or damages, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including but not limited to, contract, negligence, warranty or strict liability.