Assorted diameter black and colored heat shrinkable tubings designed for professional cable management heat shrinkable tubings
High-conductivity wire insulation sleeve commonly used for durable heat-shrink tubing applications heat-shrink tubing
Premium-grade material offering excellent protection when applied as wire shrink wrap for high-voltage cables wire shrink wrap
Premium-grade polyolefin material that provides robust protection as electrical heat shrink tubing heat shrink tubing
Robust protective sleeve functioning as a heavy-duty shrink wrap for wire to withstand harsh operational conditions shrink wrap for wire
Professional-grade polyolefin material used for effective insulation as a high-performance tubing shrink tubing shrink
Essential automotive repair supply utilized as protective shrink wire wrap to secure electrical assemblies shrink wire wrap
Durable polyolefin sleeves designed as reliable heat shrink tubing for electrical wires heat shrink tubing for electrical wires
Bulk set of protective sleeves designed for safe circuit repair using heat shrinking tubes heat shrinking tubes
High-clarity sleeve providing a transparent finish as a professional clear heat shrink tube for joint inspection clear heat shrink tube
Transparent insulating sleeve providing a tidy finish, recognized as professional clear shrink tubing clear shrink tubing
Organized set of color-coded insulating sleeves ideal for neat and safe shrink wrap wiring in automotive projects shrink wrap wiring
Versatile cable management solution for professional projects using heat shrinking tubing heat shrinking tubing
Waterproof protective sleeve featuring an internal adhesive lined heat shrink tube for superior sealing adhesive lined heat shrink tube
Durable adhesive-lined sleeve designed to shrink wrap wire and provide long-lasting environmental protection shrink wrap wire
Specialized low-temperature soldering shrink tube ensures reliable conductive bonds during electrical repairs soldering shrink tube
Thick-walled red shrink wrap tubing that ensures a secure, tight seal around conductive connections red shrink wrap tubing
Flexible polyolefin sleeves providing secure insulation and strain relief for various wire shrink tubing applications wire shrink tubing
Close-up of yellow HAISSTRONICA heat-shrink tubing 1/2 inch, 65 feet with dual-wall construction, adhesive lined, waterproof.
Red heat shrink tubing applied on wires showing strong adhesive, secure insulation, and long-lasting protection.
Blue wire heat shrink tubing detail demonstrating multilayer material, sealing adhesive, and flame-retardant insulation.

Black 4:1 Heat Shrink Tubing Kit

$9.99 USD
Coupon strip showing 5 percent and 10 percent discounts by order value
Size:1/2"
Quantité:
Free Returns Within 30 Days
Free Shipping on All Orders
Warranty up to 24 Months
Visa Mastercard PayPalAmerican Express DiscoverDiners Club
Haisstronica model automatic cable stripper for precision tasks.
Pince à dénuder auto-ajustable pour AWG 24-10 $15.99
Workbench scene using heat gun wire connectors; precise heating shrinks sleeves on cables for sealed connections.
Pince à sertir les embouts de câbles Haisstronica, AWG 23-10, hexagonale auto-ajustable, pour cosses à cliquet, embouts de câbles $20.99

Black 4:1 Heat Shrink Tubing Kit provides adhesive-lined, dual-wall protection for cable insulation, joint sealing, strain relief, and abrasion resistance. Choose one available diameter to fit the largest part of the connection before heating; the tubing can recover to approximately one quarter of its original diameter.

Size & Pack Guide

Before Diameter Nominal Recovered Diameter Published Pack Length Shrink Ratio Wall Thickness Material / Sealing Recommended Application
1/8 in (3.2 mm) Approx. 1/32 in (0.8 mm) 10 ft total 4:1 Not published Dual-wall plastic, self-adhesive lining Fine wires and small splices
3/16 in (4.8 mm) Approx. 3/64 in (1.2 mm) 10 ft total 4:1 Not published Dual-wall plastic, self-adhesive lining Small wire joints and terminals
1/4 in (6.4 mm) Approx. 1/16 in (1.6 mm) Check selected variant media 4:1 Not published Dual-wall plastic, self-adhesive lining Wire splices and connector bodies
3/8 in (9.5 mm) Approx. 3/32 in (2.4 mm) Check selected variant media 4:1 Not published Dual-wall plastic, self-adhesive lining Medium cable joints and bundles
1/2 in (12.7 mm) Approx. 1/8 in (3.2 mm) 10 ft total 4:1 Not published Dual-wall plastic, self-adhesive lining Larger connectors and cable joints
3/4 in (19.1 mm) Approx. 3/16 in (4.8 mm) 10 ft total 4:1 Not published Dual-wall plastic, self-adhesive lining Large cable joints and harnesses
2 in (50.8 mm) Approx. 1/2 in (12.7 mm) Check selected variant media 4:1 Not published Dual-wall plastic, self-adhesive lining Large cable bundles and assemblies

Recovered diameters are nominal values calculated from the published 4:1 ratio. Pack length varies by selected diameter; where the current product media does not publish a length, confirm the selected variant before checkout. Wall thickness and a numeric heating-temperature range are not published on this page.

❓What sizes are available?

The current storefront offers 1/8, 3/16, 1/4, 3/8, 1/2, 3/4, and 2-inch before-shrink diameters. Availability can vary by variant.

❓How do I choose the correct 4:1 size?

Choose tubing that slides over the widest part of the connection and can recover below the diameter of the narrowest section. A 4:1 ratio means the tubing can shrink to approximately one quarter of its supplied diameter.

❓Is this heat shrink tubing adhesive-lined?

Yes. The product is listed as self-adhesive, dual-wall tubing designed to insulate and help seal the covered connection.

❓How much tubing is included?

Published product media confirms 10 ft total for the 1/8, 3/16, 1/2, and 3/4-inch options. Check the selected variant media before checkout for any diameter whose pack length is not displayed in the guide.

❓What heating temperature should I use?

A numeric heating-temperature range is not published on this page. Use controlled heat, keep the heat source moving, and stop once the tubing has recovered evenly and the adhesive seal is visible.

❓How to Choose the Right Size

Measure the widest part the tubing must pass over, including the connector or splice. Choose a before-shrink diameter larger than that point, then confirm the nominal recovered diameter is smaller than the cable or joint you want to seal. The 4:1 ratio is especially useful where the joint is much wider than the wire. Choose 54FT for repeat workshop or fleet use and 21FT for occasional repairs.

❓How to Install

  1. Disconnect power, clean the cable or joint, and cut the required tubing length.
  2. Slide the tubing over the cable before completing any permanent connection.
  3. Center the tubing over the joint and apply controlled heat, moving from the center toward both ends.
  4. Rotate the assembly so the sleeve recovers evenly and the adhesive seals the edges.
  5. Stop heating when recovery is complete and allow the joint to cool before handling or restoring power.

Avoid open flame and overheating. The listing does not provide a numeric temperature range, so use controlled, even heat and follow the heat-tool instructions. Browse more heat shrink tubing, compare the 5-color 4:1 heat shrink tubing kit, or use a 350W mini heat gun for controlled heating.
  • Enjoy free shipping on all orders.
  • Delivery Time: 1-2 business days to The US and Canada. Delivery times may vary depending on your location and carrier conditions.
  • Details
  • Tracking: After your order is shipped, you will receive an email with a tracking number to monitor the delivery status.
  • Need Help? Contact our support team for assistance with shipping or your order.
  • 30-Day Returns
    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.
  • Damaged, Defective, or Incorrect Items
    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.
  • Refunds
    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.
  • View Full Return & Refund Policy
Close-up of insulated wire connectors joining red, blue, and yellow wires

WELCOME TO THE HAISSTRONICA CLUB!

Subscribe for Extra 10% OFF Your First order

Learn More About Porduct

  • 4:1 Shrink Ratio: it can shrink to 1/4 of the original diameter,Shrink tighter and seal better than 3:1 and 2:1.
  • 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
  • Crystal Clear:Inspect Connections Through the Tube — Transparent body lets you visually verify solder joints, crimp quality, and adhesive flow after installation. Also works as label protection — slide over printed wire markers to keep them readable, waterproof, and scratch-resistant.
  • 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 black adhesive-lined tubing for automotive and marine wiring, cable joints, connector transitions, battery leads, workshop repairs, and DIY electrical projects. The dual-wall construction adds insulation and mechanical protection, while the inner adhesive helps seal against moisture and dirt. Do not use it as a substitute for a connector, on energized wiring, or where a project requires a certified material or temperature rating that is not listed.

Livraison gratuite

Livraison gratuite sur toutes les commandes