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Home / Lighting / Driving & light bars

Dual-wall adhesive-lined heat shrink assortment kit, red and black, 300-piece setHeat shrink kit contents laid out, red and black tubes, assorted sizesHeat shrink tubing close-up showing dual-wall adhesive lining, red and black

Elevate Automotive

Dual Wall Heat Shrink Assortment Kit 300pcs Red & Black 50mm

LV3360

Dual-wall, adhesive-lined heat shrink assortment kit — 2mm to 25mm, red and black, 3:1 shrink ratio.

3:1 shrink ratio
2-25mm range
300 pieces

$69.00

4 interest-free payments of $17.25 with
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Universal auxiliary fitmentAutomotive, marine and 12V/24V electrical work — wiring harness repairs, cable management, and battery terminal sealing and moisture protection.

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This dual-wall, adhesive-lined heat shrink kit covers a full size range from 2mm to 25mm diameter, in red and black to mark polarity or circuit function — built for electrical insulation, sealing and wire protection in automotive, marine and general electrical work.

Made from flame-retardant polyolefin, each 50mm tube resists abrasion, chemicals and weather, while the inner adhesive lining melts under heat to form a tight, waterproof seal.

  • Dual-wall design — adhesive lining seals out water
  • 3:1 shrink ratio — fits a wide size range
  • Flame-retardant — durable polyolefin outer layer
  • Red & black — mark polarity at a glance


Material: Flame-retardant polyolefin

Lining: Adhesive-lined (dual-wall)

Shrink ratio: 3:1

Tube length: 50mm

Colours: Red and Black

Total pieces: 300

Everything this install needs

0 of 0 in the box
Automotive, marine and 12V/24V electrical work — wiring harness repairs, cable management, and battery terminal sealing and moisture protection.

Q: What's the shrink ratio?

A: 3:1 — the tubing shrinks down to about a third of its original diameter once heated, gripping tightly around the wire or joint underneath.

Q: Is this tubing waterproof?

A: Yes. The inner adhesive lining melts as the tube shrinks and forms a sealed layer around the wire or joint, keeping moisture out once it's cooled.

Q: Can I use this on battery terminals?

A: Yes — dual-wall adhesive-lined heat shrink is a common choice for sealing and insulating battery lugs and terminals. Pick a size that slides over the lug or terminal clamp before shrinking; this kit's largest tube is 25mm.

Q: What does "dual-wall" actually mean?

A: Dual-wall tubing has two layers: an outer flame-retardant polyolefin shell that shrinks and grips, and an inner adhesive lining that melts under the same heat to bond to the wire and seal out moisture. Single-wall tubing only has the outer shell — it insulates but doesn't seal against water.

Q: How do I use it?

A: Cut the length you need, slide it over the connection before you make the final crimp or solder joint, then apply heat evenly with a heat gun until it shrinks tight and the adhesive starts to bead at the ends — that's your seal forming.

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