Haisstronica 3:1 heat shrink tubing bundle (360PCS) with dual-wall protection for automotive wiring.
Haisstronica 360PCS heat shrink tubing kit (1/4"-1/2") for electrical wires, offering multi-size versatility.
Haisstronica 3:1 dual-wall heat shrink tubing with rock-solid insulation for high-temperature environments.
Haisstronica heat shrink tubing with adhesive core for strain relief and corrosion-resistant wire connections.
Haisstronica IP67 waterproof heat shrink tubing blocking dust and moisture for outdoor electrical applications.
Haisstronica multilayer heat shrink tubing: flame-retardant, waterproof, and antioxidant for harsh environments.
Haisstronica adhesive-lined heat shrink tubing creating superior waterproof bonds for industrial cable protection.
Haisstronica 3:1 heat shrink tubing with 3.2mm to 1mm shrink ratio for precise electrical wire insulation.
Haisstronica flame-retardant heat shrink tubing (3:1 dual-wall) to prevent open flames in high-risk environments.
Haisstronica heat shrink tubing with adhesive (3:1 dual-wall) and 19.1mm diameter for automotive wiring.
Haisstronica high temp heat shrink tubing with low shrinkage temperature (2579H) for sensitive electrical components.
Haisstronica waterproof shrink tubing assortment (1/4"-5/8" walls) for industrial cable protection and moisture resistance.

360PCS 3:1 Heat Shrink Tubing Kit

$20.99 USD

Pick a sleeve. Finish the repair neatly.

Give small wiring repairs a tidy insulating finish without cutting every piece from a roll.

• Precut convenience — ready-length sleeves reduce measuring and cutting for compatible repairs.
• Eight diameter options — choose the expanded and recovered fit that suits.
• Adhesive-lined finish — properly heated tubing insulates the joint and helps keep.

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360PCS 3:1 Heat Shrink Tubing Kit supplies eight adhesive-lined tubing sizes for wire insulation, splice protection and harness organization in automotive, marine, workshop and household electrical repairs. Choose by the largest part the tube must pass over and the smallest cable section it must seal.

Size and Quantity Guide

Before Diameter Quantity Approx. Recovered Diameter Length Shrink Ratio Construction Shrink Temperature
3/32 in / 2.4mm 130 Approx. 0.8mm 45mm / 1.7 in 3:1 Adhesive-lined dual wall 257°F / 125°C
1/8 in / 3.2mm 90 Approx. 1.1mm 45mm / 1.7 in 3:1 Adhesive-lined dual wall 257°F / 125°C
3/16 in / 4.8mm 50 Approx. 1.6mm 45mm / 1.7 in 3:1 Adhesive-lined dual wall 257°F / 125°C
1/4 in / 6.4mm 35 Approx. 2.1mm 45mm / 1.7 in 3:1 Adhesive-lined dual wall 257°F / 125°C
5/16 in / 7.9mm 16 Approx. 2.6mm 60mm / 2.3 in 3:1 Adhesive-lined dual wall 257°F / 125°C
3/8 in / 9.5mm 12 Approx. 3.2mm 60mm / 2.3 in 3:1 Adhesive-lined dual wall 257°F / 125°C
1/2 in / 12.7mm 15 Approx. 4.2mm 60mm / 2.3 in 3:1 Adhesive-lined dual wall 257°F / 125°C
5/8 in / 15mm 12 Approx. 5.0mm 60mm / 2.3 in 3:1 Adhesive-lined dual wall 257°F / 125°C

Recovered diameters are approximate values based on the specified 3:1 ratio. Confirm fit on the actual wire, splice or terminal before installation.

Related Guides and Tubing

Compare more options in the Heat Shrink Tubing Collection, or use the Heat Shrink Tubing Size Guide before selecting a diameter.

 

Specification table for wire crimper and stripper tool sizes

❓What sizes are included in the 360PCS kit?

The kit includes 3/32, 1/8, 3/16, 1/4, 5/16, 3/8, 1/2 and 5/8 inch supplied diameters. Piece counts are listed in the table and total 360 pieces.

❓How do I choose the right heat shrink tube size?

Choose a supplied diameter that clears the largest part of the connection, then confirm the approximate recovered diameter will grip the smallest cable section.

❓What does a 3:1 shrink ratio mean?

The tubing can recover to approximately one-third of its supplied diameter when heated correctly, allowing it to pass over a splice and tighten around the cable.

❓What temperature should I use?

The product specification lists a 257°F (125°C) shrink temperature. Apply controlled heat evenly, keep the heat source moving and stop after full recovery and sealing.

❓How to Choose

  1. Measure the widest connector, splice or terminal the tubing must pass over.
  2. Select a supplied diameter larger than that widest point.
  3. Check that the approximate recovered diameter is smaller than the cable section to be sealed.
  4. Choose the 45mm or 60mm length that covers the repair with adequate overlap on both sides.

❓How to Use

  1. Disconnect power and slide the selected tube onto the wire before completing the joint.
  2. Center the tubing over the finished connection.
  3. Apply controlled heat evenly from the center outward while keeping the heat source moving.
  4. Stop when the tubing has fully recovered and the adhesive forms an even seal; allow it to cool before handling or energizing.

Do not use an open flame or continue heating after full recovery.
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  • Delivery Time: 1-2 business days to The US and Canada. Delivery times may vary depending on your location and carrier conditions.
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    You may request a return within 30 calendar days of delivery. Items must be unused, in their original condition, and include all original packaging and accessories.
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    Contact us with your order number and photos. If the issue is due to our error, we will cover reasonable return shipping costs or provide an appropriate replacement.
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    Approved refunds are issued to your original payment method within 5 business days after inspection. Your bank may require additional processing time.
  • To start a return, email support@haisstronica.com with your order number and reason for return. Please obtain approval before sending anything back.
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Learn More About Porduct

  • 3:1 SHRINK RATIO: Effectively reducing diameter while providing superior insulation, shrink tubing provides a tight and secure seal for all your wire and cable connections
  • GOOD SEAL: The supplied adhesive coating provides a strong and durable seal that protects your wires from moisture, dirt and other external elements. Say goodbye to loose connections and potential short circuits
  • Dual Wall Tubing: The double wall construction of our tubing provides additional insulation and mechanical protection. It provides a barrier against abrasion, chemicals and mechanical stress, extending the life of your cables
  • Wider Application: Heat shrink tubing is used for marine and automotive wiring, wire connections and DIY electrical wiring projects. For all your needs

Use this multi-size kit to insulate finished wire splices, protect terminal transitions, add strain relief and organize cable harnesses. The adhesive-lined dual-wall construction supports moisture-resistant repairs when the selected tube fully seals to compatible cable insulation. Do not use tubing as a substitute for a mechanically sound electrical connection.

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