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Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - Black - 50 Feet Roll
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Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - Black - 50 Feet Roll

4.7/5
Product ID: 358208301
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Details

  • Brand
    Wirefy
  • Material
    Polyolefin
  • Colour
    Black
  • Product dimensions
    25L x 6.5W
  • Item weight
    499 g
  • Maximum pressure
    10 Bars
600V rated industrial-grade insulation
📏3:1 shrink ratio for ultra-tight fit
🛡️Adhesive-lined for waterproof seal

Description

🔥 Seal it tight, seal it right — the pro’s choice for lasting connections!

  • READY FOR ANY PROJECT - Generous 50-foot roll in exact 3/8" diameter means you’re stocked for multiple jobs without compromise.
  • BUILT IN WATERPROOFING - Adhesive lining activates with heat to lock out moisture and protect your connections long-term.
  • PRECISION FIT EVERY TIME - 3:1 shrink ratio ensures a snug, professional-grade seal that outperforms standard 2:1 tubing.
  • DURABILITY MEETS VERSATILITY - Dual-wall polyolefin tubing resists heat, fluids, and mechanical stress—perfect for marine and industrial use.
  • CERTIFIED SAFETY RELIABILITY - UL certification and 600V rating guarantee compliance and peace of mind for critical electrical work.

Wirefy’s 3/8" Heat Shrink Tubing features a superior 3:1 shrink ratio and adhesive lining for a waterproof, durable seal. Made from dual-wall polyolefin, it withstands heat, fluids, and mechanical wear, making it ideal for marine and industrial applications. UL certified and rated for 600 volts, this 50-foot black roll delivers professional-grade insulation and protection for all your wiring projects.

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Specifications

ManufacturerWirefy
Part NumberWirefy-DWT-9.5-B
Product Dimensions24.99 x 6.5 x 0.25 cm; 498.95 g
Item model numberWirefy-DWT-9.5-B
Size3/8" - 50 Feet
ColourBlack
StyleBlack
MaterialPolyolefin
Voltage600 Volts
Item Package Quantity1
Measurement SystemInch
CertificationUL
Batteries included?No
Batteries Required?No
Item Weight499 g

Have a Question? See What Others Asked

How flexible is the heat shrink once recovered? I am using it to group wires for a wiring loom/harness and my current heat shrink is very inflexible.
Does it come in white
Is the tubing black or does it have printing on it all along the tubing ?

Reviews

4.7

All from verified purchases

M**S

Excellent Adhesive Heatshrink

It works exactly as I hoped. Some reviews said that the tubing walls were very thick but I found them to be perfect and actually thinner than some other tubing I've used. I also noted that it does a genuine 3:1 heat shrink as well. Very happy and highly recommended.

D**E

Very high quality. Used for aluminium pole repair.

I had a snapped and bent aluminum boat canopy frame which I had straightened and repaired with tube inserts and rivets. Fine as far as it goes but I had the bright idea of encasing it in heat shrink to prevent any rough spots damaging the canopy, and to disguise the agricultural nature of the repair in general.I tested several different types of heat shrink, and this one is the clear winner. It is nice and thick, looks great, and I was able to shrink 5 metres of it with a blowtorch without scorching it at all. Add to that its excellent substrate of hot glue, and it's even strengthened the poles somewhat by laminating them. I'm absolutely delighted with the result, which would not have been possible with an inferior product.

R**E

Good quality

Very useful 3:1 shrink ratio

D**E

Tube

Good value for money

J**L

Great quality and strength

Thicker and stronger than previous tubing I purchased and thus far has proven to perform the function required exceptionally well.

A**.

Great heat shrink

Amazing heat shrink, takes a while to get around 16 guage but it does fit. And the adhesive really seals it up, I tried pulling it off my test wire and it actually too the wire insulation with it.

T**K

Just What I Needed

Just What I Needed

D**.

Best heat shrink!

Without a doubt the best on the market, will be purchasing the remaining sizes I don’t yet have, quick delivery from seller.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 83.76

Duties & taxes incl.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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