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Black heat shrink tubes, six inches long, twelve pieces, matte finish

3M

3M ITCSN-0800 6" Black Heat Shrink Tube 12-pack

SKU CH-8NB2-ZRA19

Adhesive-lined heavy-wall heat-shrink tubing shrinks 3:1 to seal 8 AWG to 1/0 AWG wires, resisting abrasion, chemicals and UV from −67 °F to 230 °F

  • TypeCable Management & Conduit
  • Seals and protects wires with 3:1 shrink ratio
  • Heavy-wall polyolefin resists abrasion, acids, alkalis and UV
  • Adhesive lining creates waterproof, environmental seal on each joint
  • Operates reliably from -67 °F to 230 °F
  • Twelve six-inch black pieces cover 8 AWG to 1/0 AWG

3M Heavy-Wall Heat Shrink Tube 12-pack

This 12-pack of 3M ITCSN-0800 tubing provides heavy-wall, adhesive-lined protection for wire sizes from 8 AWG to 1/0 AWG. Each piece measures 6 inches long and shrinks from .8 inches to .2 inches inside diameter. The cross-linked polyolefin construction resists abrasion, acid, alkali and UV light. It suits automotive, marine and industrial electrical repairs where environmental sealing matters.

Sustained environmental sealing

The adhesive lining flows when heated to create a moisture-resistant bond that remains stable across a temperature range of -67 to 230 degrees F. After shrinking, the wall thickness of .02 inches delivers rigid strain relief that does not soften or creep under continuous thermal cycling. Abrasion and chemical resistance are maintained throughout prolonged exposure to oil, fuel and cleaning solvents. The material stays flame-retardant and does not degrade under constant UV exposure.

3:1 shrink ratio limits use to compatible wire

The fixed 3:1 shrink ratio means the tube only seals reliably on conductors that fall within the stated 8 AWG to 1/0 AWG range. Smaller wires leave voids that prevent the adhesive from forming a complete seal. Larger cables cannot pass through the .8 inch pre-shrink diameter. The 6-inch cut length restricts each piece to a single splice or termination point. Black colour coding aids identification but offers no printable surface for labels.

Highlights

  • Seals and protects wires with 3:1 shrink ratio
  • Heavy-wall polyolefin resists abrasion, acids, alkalis and UV
  • Adhesive lining creates waterproof, environmental seal on each joint
  • Operates reliably from -67 °F to 230 °F
  • Twelve six-inch black pieces cover 8 AWG to 1/0 AWG

Specifications

TypeCable Management & Conduit
Brand3M

Questions about this item

Does the adhesive-lined 6 in tube give off any smell or heat while shrinking with a heat gun?

The cross-linked polyolefin tubing is rated for a continuous range of -67 °F to 230 °F and is abrasion-, acid- and UV-resistant, so normal shrinking produces no odour or excess heat beyond the gun itself.

What wire gauges can I seal with the .8 in inside diameter before shrinking?

The 3:1 shrink ratio covers 8 AWG through 1/0 AWG, so any conductor in that range will fit inside the .8 in bore before you apply heat.

Will the .2 in recovered diameter and .02 in wall still fit over my older 8 AWG automotive splice?

Yes — the tube shrinks from .8 in down to .2 in with a .02 in wall, leaving enough clearance for standard 8 AWG insulation and the adhesive liner to seal the joint.

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