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Clear thin-wall polyolefin heat-shrink tubing on spool, 100 ft, 2:1 shrink ratio, 28-26 AWG

3M

3M FP301 Heat Shrink Tubing Clear 100 ft 2:1 28-26 AWG

SKU CH-T1R2-ZANAH

Thin-wall polyolefin tubing shrinks 2:1 to fit 28-26 AWG wire, resists flame, acid and solvents, and operates from -67 °F to 275 °F

  • TypeCable Management & Conduit
  • Thin-wall polyolefin shrinks to half its diameter for tight wire insulation
  • Clear tubing lets you inspect connections before and after shrinking
  • Flame-retardant material resists acids, alkalis and solvents in harsh environments
  • Continuous 100 ft spool covers multiple 28-26 AWG wire runs without joins
  • Shrinks at 212 °F and withstands -67 °F to 275 °F operating range

3M FP301 Thin-Wall Heat Shrink

This 3M FP301 tubing is a clear, thin-wall polyolefin sleeve supplied on a 100 ft spool. It is designed for electrical insulation and strain relief on 28 to 26 AWG wires in automotive, industrial and general wiring tasks. The material is flexible, flame retardant and resistant to acids, alkalis and common solvents. It operates reliably from -67 °F to 275 °F.

2:1 Shrink Ratio and Wire Range

The tubing has a 2:1 shrink ratio, reducing from a 0.09 in. inner diameter to 0.05 in. with a 0.02 in. recovered wall thickness. This comfortably covers 28 to 26 AWG conductors and small splices, providing dielectric strength of 900 V after shrinking. It will not fit larger gauge wires or connectors needing a higher shrink ratio or adhesive lining for environmental sealing.

Minimum Shrink Temperature 212 °F

The critical specification is the minimum shrink temperature of 212 °F. A heat gun or similar tool must reach this temperature to activate full recovery; lower-temperature sources such as hair dryers may not shrink the tubing completely. The absence of adhesive lining means this product suits mechanical protection and insulation only, not waterproof sealing.

Highlights

  • Thin-wall polyolefin shrinks to half its diameter for tight wire insulation
  • Clear tubing lets you inspect connections before and after shrinking
  • Flame-retardant material resists acids, alkalis and solvents in harsh environments
  • Continuous 100 ft spool covers multiple 28-26 AWG wire runs without joins
  • Shrinks at 212 °F and withstands -67 °F to 275 °F operating range

Specifications

Brand3M
TypeCable Management & Conduit

Questions about this item

Will the 0.09 in inner diameter before shrinking fit over the 28 AWG and 26 AWG wires I already use?

Yes, the tubing is specified for use with wire sizes 28 AWG to 26 AWG and has an inside diameter of 0.09 in before shrinking, so it will slide over those conductors.

How can I confirm the tubing has shrunk properly after applying heat?

After heating to at least 212 °F the inside diameter should reduce to 0.05 in and the wall thickness to 0.02 in, giving a tight fit on the wire.

Does the 100 ft spool include any adhesive-lined sections or must I buy adhesive-lined tubing separately?

The supplied tubing is not adhesive-lined; if you need an adhesive-lined version you will have to purchase it separately.

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