Metallic adhesive tape 3M 431, 75 mm x 55 m — foil-backed multi-purpose sealing and repair tape

Metallic adhesive tape 3M 431, 75 mm x 55 m — foil-backed multi-purpose sealing and repair tape. Foil-faced metallic adhesive tape with a 75 mm width and 55 m length, designed for sealing, joining, patching and general-purpose repairs on metal surfaces, HVAC ducts and other areas that require a durable metallic backing. The tape provides a reliable adhesive bond, weather resistance and a reflective metallic finish suitable for construction, maintenance and DIY applications.

Advantages

The 3M 431 metal adhesive tape offers a durable foil backing that resists weathering and provides a reflective surface. Its pressure-sensitive adhesive ensures good initial tack and long-term bonding on metal and similar substrates. The roll format (75 mm x 55 m) enables continuous application over seams and joints and reduces the need for frequent splices during installation.

Suitable for

• Sealing HVAC ducts and air-conditioning systems
• Patching and repairing metal roofs, gutters and flashings
• Joining and sealing seams in sheet metal and foil-faced insulation
• General-purpose repairs where a foil-backed, weather-resistant tape is needed

Key specifications

• Brand: 3M
• Model/MPN: 431 (4317555)
• EAN: 0051125854252
• Size: 75 mm × 55 m
• Film/Backing: Metallic foil
• Unit: 1 roll

How to use

Ensure surfaces are clean, dry and free of dust, oil or loose material before application. Cut the required length from the roll and apply with firm pressure, smoothing from the center outward to remove air pockets. Overlap tape edges as necessary to create continuous seals. For best results on vertical surfaces, support the tape until adequate adhesion develops.

Usage recommendations

Do not apply over wet or frosty surfaces. Store the roll in a cool, dry place away from direct sunlight. For critical or pressurized duct systems, check local regulations and use in combination with appropriate mechanical fasteners or mastics when required.