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Black polyolefin heat-shrink tubing pieces 30 mm long before shrinking

Unique-Bargains

Unique-Bargains 360pcs 2mm Heat Shrink Tubing 30mm Black

SKU CH-BN01-JZ6DV

360 pieces of 2 mm polyolefin heat-shrink tubing, 30 mm long, shrinking from 0.08 in to 0.04 in for 600 V insulation and cable protection

  • Product typeHeat Shrink Tubing
  • Key featuresElectric Insulation;Electrical Connection;Cable Sleeve;Wire
  • 360 pieces insulate multiple wire connections
  • Shrinks from 2 mm to 1 mm for tight seal
  • Rated 600 V for safe electrical insulation
  • Low shrink temperature speeds up installation
  • 30 mm length covers joints and splices

360-piece heat-shrink kit

This pack contains 360 pieces of black polyolefin tubing, each 30 mm long with a 2 mm pre-shrink diameter. It suits hobbyists, technicians and automotive installers who need a large assortment of insulation sleeves for wire harnesses, connector repairs and corrosion protection on small rods or antenna elements.

Pre-cut lengths and thin wall

The 30 mm pre-cut sections remove the need to measure and cut bulk tubing, while the very thin wall keeps shrinkage fast and protects temperature-sensitive components. Low shrink temperature speeds up production or repair work and the tubing delivers electric insulation, cable sleeving and wire-wrap functions in one step.

600 V rating and 2:1 shrink ratio

Rated for 600 V, the tubing shrinks from 2 mm to 1 mm inner diameter, so it only fits conductors and connectors that pass through the 2 mm bore before heating. Buyers needing larger diameters, higher voltage ratings or adhesive-lined tubing for environmental sealing will need a different product.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 90% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand nameUnique Bargains
Product typeHeat Shrink Tubing

Questions about this item

Does the 2 mm inner-diameter tubing need periodic replacement once shrunk onto a 600 V cable?

The polyolefin sleeve is a permanent insulation layer; it does not degrade under normal electrical or environmental stress, so no scheduled replacement is required.

What is the first limitation reached when the tubing is exposed to continuous high temperature?

The material shrinks fully at a low activation temperature; once recovered to the 1 mm final diameter it remains stable, so sustained heat does not cause further dimensional change.

How much heat does the tubing generate when it stays on a live 600 V circuit all day?

The tubing itself produces no heat; it only insulates the conductor, so running temperature depends entirely on the wire load, not on the sleeve.

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