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Clear heat-shrink tubes, 1.5 in diameter, 6 in long, ten pieces

3M

3M FP301 1.5 in Clear Heat Shrink Tube 6 in 10 Pack

SKU CH-0NJH-JWQN1

Clear thin-wall polyolefin tubing shrinks 2:1 to 0.75 in ID, fits 500–800 MCM wire, resists acid, alkali and solvents from -67 °F to 275 °F

  • TypeCable Management & Conduit
  • Clear tubing lets you inspect connections easily
  • 2:1 shrink ratio halves diameter to 0.75 in for tight seals
  • Flame-retardant polyolefin withstands -67 to 275 °F extremes
  • Acid, alkali and solvent resistance protects in harsh environments
  • 600 V dielectric strength insulates high-voltage cables safely

1.5 inch Clear Heat Shrink Tubing

This 3M FP301 tubing provides thin-wall insulation for wire sizes ranging from 500 MCM to 800 MCM. The clear polyolefin material allows visual inspection of connections after shrinking. Each pack contains ten individual six-inch pieces ready for immediate use. The flexible tubing resists acids, alkalis and common solvents.

2:1 Shrink Ratio Replaces Tape and Sleeving

The tubing shrinks from 1.5 inches to .75 inches inner diameter when heated to at least 212 degrees F. This ratio covers a wide range of conductor diameters without needing multiple sizes. The jump is worth it when you need flame-retardant protection that won't unravel or absorb moisture like cloth tape or loose sleeving can.

Thin Wall Limits Mechanical Protection

After shrinking the wall measures .04 inches thick, which insulates electrically at 600 V dielectric strength but offers minimal abrasion resistance. The operating range spans -67 to 275 degrees F, so it suits engine bays and control panels alike. Because it lacks an adhesive liner, it will not seal against water ingress or vibration-induced movement.

Highlights

  • Clear tubing lets you inspect connections easily
  • 2:1 shrink ratio halves diameter to 0.75 in for tight seals
  • Flame-retardant polyolefin withstands -67 to 275 °F extremes
  • Acid, alkali and solvent resistance protects in harsh environments
  • 600 V dielectric strength insulates high-voltage cables safely

Specifications

Brand3M
TypeCable Management & Conduit

Questions about this item

What wire sizes fit inside the 1.5 in inside diameter before shrinking?

The tubing is rated for wire sizes from 500 MCM to 800 MCM before heat is applied.

What minimum temperature should the heat gun reach to start the 2:1 shrink ratio?

Apply heat at or above 212 degrees F so the tube shrinks from 1.5 in to .75 in inside diameter.

How thick is the wall after shrinking, and does that affect dielectric strength?

Wall thickness after shrinking is .04 in and the material maintains a 600 V dielectric strength rating.

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