Adhesive Aluminum Foil Tape 3M 4253855, silver, 38 mm x 55 m

3M Aluminum Foil Tape 4253855 is a silver, pressure-sensitive adhesive foil tape with a 38 mm width and 55 m length designed for sealing, patching and insulation applications. The reflective aluminum surface provides a durable barrier against moisture and light, and the conformable foil backing allows the tape to follow contours and adhere smoothly to metal, ductwork and other firm surfaces. This tape is suitable for HVAC repairs, seam sealing, temporary fixes and general maintenance tasks where a metallic, corrosion-resistant finish is required.

Advantages

The tape combines a reflective aluminum backing with a long-lasting pressure-sensitive adhesive that bonds quickly to clean, dry surfaces without additional heating or primers. Its conformability enables reliable adhesion over curved and irregular surfaces, while the metallic surface offers corrosion resistance and UV reflection. The roll format with 55 m length reduces the need for frequent replacements, and the 38 mm width provides a balance between coverage and ease of handling for both professional and DIY tasks.

Suitable for

• HVAC duct sealing and repair
• Sealing seams and joints on metal surfaces
• Temporary fixes for pipes and fittings
• Patching insulated panels and reflective surfaces
• General maintenance and protective covering

Key specifications

• Backing material: aluminum foil
• Adhesive type: pressure-sensitive adhesive
• Color / finish: silver, reflective
• Width: 38 mm
• Length: 55 m
• Conformability: flexible to curved and irregular surfaces
• Resistance: moisture and corrosion resistant; suitable for indoor HVAC applications

How to use

Ensure the target surface is clean, dry and free from dust, oil or loose particles before application. Cut the required length from the roll and apply the tape with firm pressure to achieve good contact between adhesive and surface; use a roller or a flat tool to press the tape evenly and remove trapped air. Overlap tape edges where sealing seams, and trim excess material for neat results. For long-term installations, verify adhesion periodically and consider surface preparation on marginal substrates.

Usage recommendations

Use the tape at moderate room temperatures and apply to surfaces with stable temperatures; avoid application on wet or contaminated substrates. For outdoor or prolonged high-humidity exposure, evaluate suitability for the specific environment. Store the tape in a dry place away from direct sunlight and extreme temperatures to maintain adhesive performance.