Fabric tape 3M 2904 Silver 48 mm x 50 m — cloth-backed adhesive tape

3M Fabric Tape 2904 in silver is a cloth-backed adhesive tape measuring 48 mm × 50 m designed for sealing, bundling, surface protection and temporary repairs. The cloth backing provides flexibility and conformability to irregular shapes while the pressure-sensitive adhesive ensures reliable contact with a variety of substrates. The silver finish offers a neutral, low-visibility appearance suitable for HVAC ductwork, cable runs and general maintenance tasks.

Advantages

The cloth backing gives the tape tear resistance and dimensional stability while remaining flexible for application on curved or uneven surfaces. The pressure-sensitive adhesive adheres quickly and securely to metal, painted surfaces, plastics and many composite materials. Its fabric construction supports mechanical strength for bundling and temporary joins, and the silver surface helps reduce visual contrast on metallic and light-colored substrates. The roll format (48 mm width by 50 m length) allows for multiple uses and reduces the need for frequent replacements.

Suitable for

• Sealing HVAC ducts and vents
• Temporary repairs to metal and painted surfaces
• Bundling cables, hoses and pipes
• Surface protection during maintenance and installation
• Industrial and general-purpose maintenance tasks

Key specifications

• Backing material: cloth (fabric-backed)
• Colour/finish: silver
• Adhesive type: pressure-sensitive adhesive
• Width: 48 mm
• Length: 50 m
• Properties: flexible, conformable, tear-resistant

How to use

Ensure the surfaces are clean, dry and free of dust, oil or loose particles before application. Cut or tear the required length of tape, position it over the joint or area to be sealed, and press firmly along the length to ensure full contact and adhesion. For curved or irregular surfaces, apply with moderate tension and smooth from the centre outward to avoid wrinkles and air pockets. Overlap adjacent strips slightly for continuous seals. For best results on porous or rough substrates, press firmly and consider reapplying after an initial cure time to improve edge adhesion.

Usage recommendations

Store the product at room temperature away from direct sunlight and excessive humidity. Not intended for permanent structural bonding or high-temperature continuous exposure; evaluate in specific conditions before prolonged use. For critical high-temperature, chemical-resistant or permanent sealing requirements, select a tape formulated for those conditions.