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Black heat-shrink tubing pieces thin wall 15 pack

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 67962 Heat Shrink Conduit Thin Wall Black 3 in 15 PK

SKU CH-PNZE-MRW21

Thin-wall black heat-shrink conduit protects cables in a 15-piece pack

  • Product typeCable Management & Conduit
  • Thin-wall design shrinks quickly for fast insulation
  • Black finish blends with wiring looms for a clean look
  • Three-inch length covers standard splices without waste
  • Fifteen-piece pack supplies multiple repairs from one box
  • Heat-shrink material seals out moisture and abrasion

Thin-wall heat-shrink conduit

MIDWEST FASTENER CORP 67962 supplies fifteen pieces of black thin-wall heat-shrink conduit for wire bundling and insulation. The three-inch length suits short-run repairs and terminal protection in automotive and general electrical work. Each piece shrinks uniformly when heated to form a tight seal around cables. The pack provides enough pieces for multiple small jobs or a single larger harness.

Thermal behaviour and power

Thin-wall construction allows rapid shrinkage with a standard heat gun or lighter, reducing the time the installer spends applying heat. The material remains flexible after shrinking, so vibration in vehicle chassis does not crack the insulation. No external power is needed beyond the heat source, keeping the process simple on-site or in the shop.

Replaces tape and loose sleeving

This conduit replaces electrical tape and loose braided sleeving where a permanent, moisture-resistant seal is required. The jump is worth it when connectors must stay sealed against road salt, oil or water ingress. Builders who need longer continuous lengths or heavier wall thickness will need a different product.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 70% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeCable Management & Conduit

Questions about this item

How do I install the 3 in heat-shrink tube and what step do people skip?

Cut the tube to length, slide it over the joint, then apply even heat with a heat gun until it shrinks tightly; the step most often skipped is continuing heat past the first sign of shrinkage so the adhesive liner fully flows and seals.

What maintenance or replacement will the thin-wall conduit need later?

Inspect periodically for cracks, abrasion or UV brittleness; if the wall splits or the seal fails, cut out the damaged section and fit a new piece from the 15 PK.

What limit appears first when the conduit is under sustained heat or vibration?

The thin-wall material reaches its shrink-recovery limit first; prolonged exposure above its rated temperature causes permanent deformation and loss of sealing pressure.

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