3M 425 Aluminum Foil Tape for HVAC Sealing Heat Shielding and Conduction

The 3M 425 aluminum foil tape consists of a high purity aluminum foil backing and thermally conductive acrylic adhesive. With over 93% reflectivity, it provides exceptional heat reflection for HVAC systems and heat pipelines. This UL-listed foil tape effectively seals and insulates ductwork while creating a moisture and vapor barrier. It conforms well to seal seams, connections and fittings in air conditioning and ventilation ducts. Resistant to UV and temperature extremes, the 3M 425 withstands harsh indoor and outdoor conditions. Easy tear and quick stick application enables reliable HVAC sealing to improve energy efficiency.

Table of Contents

Features

  • Aluminum foil backing provides excellent reflectivity.
  • Acrylic adhesive with high thermal conductivity.
  • Conforms well to seal curved and irregular surfaces.
  • Creates an effective moisture and vapor barrier.
  • Withstands high and low temperatures.
  • Resists UV radiation and oxidation.
  • Easy to tear and apply.
  • UL listed for flame retardance.

Structure

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Applications

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