3M 7100114875 Ptfe Film Tape 5491 Gray 6in X 36yd

Product Description

The 3M 7100114875 is a PTFE extruded film tape — sold under the 3M 5491 product line — designed for sealing, masking, and low-friction surface applications. The tape features a 6.7 mil gray PTFE extruded film backing with a silicone adhesive, delivering an exceptionally slick surface on application. It is the thicker version of the 3M 5490 tape, offering added durability where a more substantial film is needed. The PTFE film resists curling during unwind, which keeps installation clean and consistent. Trade professionals in HVAC, plumbing, and industrial maintenance use this tape where chemical resistance, high-temperature tolerance, or a non-stick surface is required.

This tape is suited for use in residential and commercial applications where surfaces must be sealed or masked against chemical exposure, high heat, or abrasion. Common install scenarios include sealing ductwork components, masking surfaces during coating or painting operations, and providing low-friction liners on sliding or mating surfaces. The silicone adhesive bonds to a range of substrates encountered in mechanical and industrial service environments. The 6-inch width and 36-yard length make this roll practical for larger coverage jobs or repeated cuts on a single run.

Key Features

• 6.7 mil thick PTFE extruded film backing for added durability over the 5490 series
• Silicone adhesive provides strong, temperature-resistant bonding
• Resists curling during unwind for clean, consistent application
• Chemical resistant surface suitable for sealing and masking tasks
• Gray color aids visual identification on installed surfaces
• 6-inch width and 36-yard length per roll for larger coverage areas

Compatibility

Designed as an OEM-style specialty tape for sealing, masking, and low-friction surface applications across HVAC, plumbing, and industrial maintenance trades.

Installation Notes

This tape is typically installed by HVAC technicians, plumbers, or industrial maintenance professionals. Ensure the substrate is clean, dry, and free of oils or loose material before applying the tape to achieve full adhesive contact. No special tools are required beyond a tape dispenser or utility knife for clean cuts. Follow applicable codes and manufacturer guidelines when using tape as part of a duct seal or pressure-rated assembly.

Technical Specifications

• Film Thickness: 6.7 mil
• Backing Material: PTFE extruded film
• Adhesive Type: Silicone
• Color: Gray
• Width: 6 inches
• Length: 36 yards
• Weight: 3.96 pounds
• Unit of Measure: Roll
• Minimum Order Quantity: 2

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100114875