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Ten short black heat-shrink tubes with adhesive lining

3M

3M EPS300 1/2 in 6 in Black Adhesive Heat Shrink Tubing 10 Pack

SKU CH-5WX1-3R1K7

Adhesive-lined polyolefin tubing shrinks 3:1 to seal 6–1 AWG wires, resisting flame, abrasion and chemicals from −67 °F to 230 °F

  • Adhesive lining seals out moisture
  • 3:1 shrink ratio fits 6–1 AWG wires
  • Flame-retardant polyolefin withstands –67 °F to 230 °F
  • Thin 0.03 in wall stays flexible after shrinking
  • Ten 6 in black pieces per pack

Thin-wall adhesive heat-shrink for 6–1 AWG

This 3M EPS300 tubing shrinks from 0.5 in to 0.16 in at a 3:1 ratio. The polyolefin sleeve carries an inner adhesive liner that flows when heated. Ten black pieces, each 6 in long, suit wire gauges from 6 AWG to 1 AWG. The thin 0.03 in recovered wall keeps bulk low while sealing out moisture.

Flame-retardant polyolefin rated –67 °F to 230 °F

Shrink begins at 250 °F and the material resists abrasion, acids and alkalis. The adhesive bond remains flexible across the full temperature range. No special tools are required beyond a standard heat gun. The tubing meets basic automotive and electrical environmental demands without added weight.

Replaces tape, mastic

The jump is worth it when a single piece must insulate, strain-relieve and waterproof in one step. Builders who need dual-wall thickness or clear inspection windows should look elsewhere. The 10-pack covers a typical harness repair without opening bulk stock.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $33.99
Cheaper than about 85% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand name3M

Questions about this item

How do I install the 1/2 in heat-shrink tubing and what step is often missed?

Slide the 6 in piece over the splice, then apply heat at or above 250 Degrees F until the adhesive flows and the tube shrinks from .5 in to .16 in; the step people skip is heating long enough for the inner adhesive to fully melt and seal.

What maintenance or replacement will the adhesive-lined polyolefin need later?

The tubing is rated from -67 Degrees to 230 Degrees F and resists abrasion, acid and alkali; inspect seals after thermal cycling or chemical exposure and replace any piece that shows cracking or adhesive breakdown.

What limit appears first during sustained high-temperature use?

Continuous operation above 230 Degrees F exceeds the material's rated range and will degrade the polyolefin and adhesive before any other failure mode occurs.

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