Fabricators of Adhesive Tapes & Flexible Materials
3M™ 425 Aluminum Foil Tape consists of 2.8 mil thick shiny silver, dead-soft aluminum foil coated on one side with transparent, pressure sensitive acrylic adhesive. This foil is thermally conductive for heating and cooling efficiency and resists weather, moisture, chemicals and UV degradation. This premium aluminum foil is used for aerospace, appliance, automotive, electronics and general industrial applications.
Unit of Measure


N/A 3M™

Brand Part Number

N/A 3M 425

Primary Application

N/A Bonding Damping Electrical Gaskets Industrial Sealing Splicing Thermal Management

Application Description

  • General purpose holding, patching, sealing applications indoors and outdoors
  • Used as a masking in electroplating and aircraft paint stripping
  • Moistures barrier and hold wires and cooling coils in appliances
  • Repair tears on truck trailers and aircraft
  • Splicing of thin gauge foils


  • Heat and light reflector and dissipater
  • Moisture and solvent resistant
  • Thermally conductive
  • Flame resistant Meets U.L.746C and 723, Class "L" low flammability rating
  • Outdoor weathering and UV resistant
  • Meets requirements of F.A.R 25.853(a)

Markets Served

N/A Aerospace Automotive Construction Defense Electrical Electronics Manufacturing Transportation


N/A Dead Soft Aluminum

Adhesive Coating

N/A Single Coated

Adhesive Type

N/A Acrylic

Release Liner

N/A Liner-less

Adhesive Thickness

N/A 4.6 mil


N/A Silver

Maximum Width/ Master Roll Width

N/A 48 in

Adhesion to Steel

N/A 47 oz/in

Service/Operating Temperature

N/A -65 to 300 ºF

N/A The physical properties listed are typical values based on PSTC, ASTM and other standard tests. This data should be used as guides only, and not as specification limits. Our recommendations for use are based on practical experience and testing. However, it is the responsibility of the user to determine the suitability of the product for his intended use. MBK Tape Solutions will not assume liability for claims beyond the replacement value of our product proved to be defective.

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