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Black heat-shrink tubing coil 8mm .32in .35in .6mm 125C

Unique-Bargains

Unique-Bargains 8mm 4:1 Heat Shrink Tube 2m Black

SKU CH-ECVQ-6SC64

8mm diameter heat-shrink tubing with a 4:1 shrink ratio insulates and protects cables, shrinking at 125C to cover sensitive components

  • 8 mm tube shrinks to one-quarter size at 125 °C
  • 6 mm thin wall protects temperature-sensitive components
  • 2 m length covers multiple wire harnesses
  • 32 in pre-shrink diameter fits standard cables
  • Black finish resists corrosion on rods and antennae

What this tube does

The Unique-Bargains 8mm heat-shrink tube provides electrical insulation and mechanical protection for cables, connectors and small metal rods. It suits electricians, hobbyists and automotive technicians who need a quick, reliable way to seal wire joints or shield temperature-sensitive components.

When to choose the 4:1 ratio

A 4:1 shrink ratio replaces standard 2:1 tubing when you must cover connectors or splices that are much larger than the finished wire bundle. The jump is worth it if you regularly insulate irregular shapes or need a single size to handle several wire gauges without keeping multiple diameters in stock.

Installing and common pitfalls

Cut the required length, slide it over the joint, and apply heat until the tube recovers to its .32 inch recovered diameter; the wall measures .6mm before shrinkage. Low 125C shrink temperature speeds the job and reduces risk to nearby parts. Uneven heating or skipping the cleaning step can leave voids or poor adhesion.

Highlights

  • 8 mm tube shrinks to one-quarter size at 125 °C
  • 6 mm thin wall protects temperature-sensitive components
  • 2 m length covers multiple wire harnesses
  • 32 in pre-shrink diameter fits standard cables
  • Black finish resists corrosion on rods and antennae

Specifications

BrandUnique Bargains

Questions about this item

What outside diameter does the 8 mm heat-shrink tube have before shrinking?

The tube measures 9 mm (0.35 in) outside diameter before heat is applied.

At what temperature should I apply heat to achieve the 4:1 shrink ratio?

Apply heat at 125 °C; the tubing shrinks from 8 mm down to 2 mm.

How thick is the wall before shrinkage, and does it stay protective afterwards?

Wall thickness is 0.6 mm before shrinking and remains intact to protect temperature-sensitive components.

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