3M FP301 Series Black Polyolefin Thin-Wall Heat Shrink Tubing

3M FP301 Series Black Polyolefin Thin-Wall Heat Shrink Tubing

The 3M FP301 Series is a thin-wall heat shrink tubing engineered for insulating and protecting wire splices, cable ends, terminals, and connector bodies in commercial, industrial, and MRO electrical work. Constructed from flexible polyolefin material in a black finish, this tubing is available in diameters ranging from 3/16-Inch to 1-1/2-Inch, supplied in 48-Inch stick lengths that can be cut to custom segments on site. When heat is applied with a heat gun or torch, the polyolefin material shrinks tightly around the substrate to deliver a low-profile, mechanically secure covering that helps guard against abrasion, moisture intrusion, and mechanical stress. This diameter range makes the FP301 Series a practical stock item for electricians, panel builders, and maintenance technicians who need reliable insulation across a wide variety of wire and cable sizes.

Key Features

• Diameter Range: Available from 3/16-Inch to 1-1/2-Inch to match wire and cable sizes from small conductors to larger cable bundles.
• Stick Length: Supplied in 48-Inch lengths that can be field-cut to the exact segment needed for each splice or termination.
• Durable Construction: Flexible polyolefin material resists cracking and provides a reliable, heat-activated shrink fit over time.
• Thin-Wall Design: A slim wall profile shrinks tightly around wires, cables, and connector bodies without adding unnecessary bulk.
• Field-Cuttable Length: The 48-Inch stick can be trimmed to the exact segment length needed for each application.
• Finish: Black color provides a clean, uniform appearance and standard color coding for wire and cable identification.
• Versatile Coverage: Suitable for bundling multiple conductors together or insulating a single larger cable or connector body, depending on the diameter selected.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Wire and Cable Splice Insulation
• Cable Bundling and Strain Relief
• Connector and Terminal Protection
• Motor Lead and Terminal Insulation
• Electrical and Industrial Wire Harnessing
• Renovation and New Construction Wiring Projects

Why 3M?

3M brings materials engineering expertise to its polyolefin heat shrink tubing, delivering a dependable, flexible covering for wire and cable protection across a full range of diameters. The FP301 Series black thin-wall tubing gives electrical professionals a trusted, field-cuttable material for insulating splices, terminals, and connectors across commercial, industrial, and renovation wiring projects where consistent, code-conscious workmanship matters. With diameters spanning 3/16-Inch to 1-1/2-Inch and 48-Inch stick lengths, the FP301 Series gives crews a single stocked material that adapts to a broad range of wire and cable protection needs.