3M 7000048516 Urethane Foam Tape 4318 1/2 in X 36 Yd

Product Description

The 3M 7000048516 is a single-coated, open-cell urethane foam tape sold under the 3M Foam Tape 4318 product line. Charcoal gray in color, it measures 1/2 inch wide by 36 yards long and 1/8 inch thick. The soft, conformable foam construction allows it to compress and conform to irregular surfaces, forming an effective barrier against moisture, dust, and drafts. It is a go-to sealing tape for HVAC technicians, sheet metal contractors, and general building trades where flexible, compressible sealing is required in gaps, joints, and panel edges.

This tape is suited for residential and light commercial applications where a conformable, low-profile seal is needed. Typical use cases include sealing HVAC cabinet seams, duct access panel edges, equipment enclosure gaps, and similar applications where rigid sealants are impractical. The open-cell urethane foam provides compressible cushioning while sealing out environmental infiltration. The roll format makes it easy to stage and cut to length on the job.

Key Features

• Open-cell urethane foam construction — soft and conformable to irregular surfaces
• 1/8 inch thickness provides compressible sealing depth in gaps and panel joints
• Seals against moisture, dust, and air drafts
• Single-coated adhesive on one face for direct surface application
• Charcoal gray color for low-visibility installation in equipment cabinets and ductwork
• 36-yard roll length reduces mid-job roll changes on larger sealing runs

Compatibility

Designed as a general-purpose urethane foam sealing tape for use in HVAC, sheet metal, and light construction applications where a soft, compressible adhesive foam seal is required.

Installation Notes

Surface should be clean, dry, and free of oil or dust before applying tape for maximum adhesion. Cut to length with a utility knife or shears. Apply firm hand pressure along the full length of the tape to ensure full contact between the adhesive face and the substrate. In HVAC and mechanical applications, power down equipment before accessing panels or cabinet interiors where the tape will be applied.

Technical Specifications

• Tape Series: 4318
• Color: Charcoal Gray
• Width: 1/2 inch
• Length: 36 yards
• Thickness: 1/8 inch
• Foam Type: Open-cell urethane
• Coating: Single-coated
• Unit of Measure: Roll
• Weight: 0.42 pounds
• UPC: 00051131064478

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000048516