3M 425 Conductive Aluminium Tape, 12mm x 55 m +149 °C Max

This aluminium tape provides a conductive metallic adhesive solution for sealing, shielding and repairs in industrial settings. It is intended for use where a combination of conductive backing and Durable adhesion is required, particularly in environments with elevated temperatures and challenging surfaces. The silver finish aids light reflection and conductivity while the foil construction supports conformability to ducts and irregular substrates.

• Conductive foil backing enables electromagnetic shielding and grounding
• Acrylic adhesive delivers peel strength of 55 N/100mm for firm bonds
• Operates between -54°C and +149°C for wide thermal-range performance
• Tensile capacity of 49 N/cm resists mechanical stress during installation
• Thickness 0.12mm provides a balance of flexibility and dimensional stability

• Suitable for HVAC ductwork sealing and joint repair in ventilation systems
• Ideal for electrical shielding and bonding in control cabinets
• Used for conductive repairs on mechanical housings and enclosures
• Can be used for aluminium foil tape laps in thermal insulation systems

The acrylic adhesive is formulated for strong adhesion to smooth metals, providing immediate tack and sustained bond under static loading conditions.

Yes, it maintains integrity and adhesive performance up to +149°C, making it suitable for high-temperature applications.

The aluminium foil backing offers malleability for conforming to curved profiles while preserving conductive continuity across applied areas.

The tape meets specified test methods including ASTM D-3833 for alkaline resistance and ASTM D-3330 for peel adhesion performance.