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Wirefy

Wirefy Heat Shrink Tubing Kit 180 PCS - 3:1 Ratio Adhesive Lined, Wire Shrink Wrap Tubing - Industrial Heat-Shrink Tubing - Black - Shrink Wrap Tubing | Trusted UL Certification

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Size: Kit - 180 pcs


Color: Black - 180 pcs


Features

  • 3:1 SHRINK RATIO - Recovers to 1/3 of its original diameter, and makes a tight seal. Eliminates the problem of 2:1 tubing not shrinking tight enough.
  • GLUE INSIDE - When heat is applied, adhesive comes out and seals the connection, creating resistant and long-lasting insulation.
  • VARIETY OF SIZES - We have included 7 most commonly used diameters ranging from 3/32" to 3/4". Shrink tubing is precut to 3.5 inches.
  • EASY TO USE - Simply slide heat shrink tube over your connection point and apply heat. Professional connections made in seconds.
  • DUAL WALL TUBING & TRUSTED UL CERTIFICATION - Outer wall provides abrasion resistance. Inner wall creates resistant seal and strain relief. Independently verified by UL for quality and safety, giving you confidence in every use.

Description

Who We Are Wirefy is a small USA-owned and operated business. We offer top-quality electrical connectors, crimping tools, heat shrink tubing and electrical wires at reasonable prices. Wirefy empowers electricians and DIY lovers to make professional electrical connections through quality products and education. We've got you covered on your wiring project. We craft electrical connectors from thick, pure copper for strong crimps and max current flow. Tin coating protects against corrosion. Our terminals are fitting everyones needs. Our crimping tools come with high-precision crimping dies designed specifically for every terminal type. Our tools ensure consistent, effortless and rock-solid crimps. Go for 3:1 or 4:1 shrink ratio. This ensures a tighter seal. Make sure it has adhesive lining for protection against dust and water. Super Versatile Heat Shrink Tubing Are you looking to fix a damaged wire, seal out moisture, or provide enhanced strain relief? Wirefy resistant heat shrink tubing is an easy to use solution that can be used in automotive, hobby RC, and home electrical wiring projects. It can be used in a variety of applications such as: 3:1 Shrink Ratio Shrink Tube When heat is applied, this wire shrink wrap tubing will recover to a 1/3 of its original diameter. Its high recovery ratio makes it possible to repair most damaged cable jackets without removing connectors. Therefore, 3:1 shrink ratio tubing can be used in significantly more applications compared to 2:1 shrink ratio tubing. Additionally, 3:1 heat-shrink tubing shrinks around wires and terminals more tightly, eliminating any air gaps. Heat Activated Adhesive Lining This is a resistant shrink tubing with the internal adhesive layer. When heat is applied, shrink tubing recovers and the internal adhesive layer melts. A small fillet of clear adhesive (about 1 mm wide) becomes visible at the end of the heated tubing. When cooled down, it forms a rigid seal. Heat activated glue strongly adheres to wires, terminals or any other surfaces. When adhesive flows, it pushes the air out and fills any gaps between the wire and the tubing, which makes the connection resistant. For best results we recommend using a heat gun. Dual Wall Shrink Tubing Dual wall heat shrink tubing provides better rigidity and abrasion resistance. Dual wall tubing design has the increased ability to stand up to wear and tear. This wire heat shrink tubing is perfect for everyone. This industrial grade heat shrinkable tubing is compliant with all relevant electrical standards such as: SGS, RoHS, Reach, and ISO9001. Our Collection of Heat Shrink Tubing Wirefy assorted heat shrink tubing comes in kits as well as 50 Ft rolls. We offer a great variety of sizes (3/32” to 2”) and colors (black, red, white, blue, clear).

Material: Polyolefin


Brand: Wirefy


Recommended Uses For Product: Wire insulation, electrical connections, battery lugs, signal leads, automotive wiring, drone wiring, IoT boards, marine applications, under-hood engine components, cable splicing, strain relief, abrasion protection See more


Product Dimensions: 7.68"L x 1.38"W


Global Trade Identification Number: 71


Brand Name: Wirefy


Global Trade Identification Number: 71


Manufacturer: Wirefy


UPC: 857409007471


Unit Count: 1 Count


Item Length: 3.5 inches


Model Number: Wirefy-DWT-180


Manufacturer Part Number: Wirefy-DWT-180


Item Dimensions L x W: 7.68"L x 1.38"W


Recommended Uses For Product: Wire insulation, electrical connections, battery lugs, signal leads, automotive wiring, drone wiring, IoT boards, marine applications, under-hood engine components, cable splicing, strain relief, abrasion protection


Material Type: Polyolefin


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Wirefy Heat Shrink Tubing Kit: A Versatile and Durable Solution for Electrical Insulation
Size: Kit - 180 pcs Color: Black - 180 pcs
I recently purchased the Wirefy Heat Shrink Tubing Kit (180 PCS - 3:1 Ratio Adhesive Lined), and I am extremely satisfied with its performance. Here's a detailed review based on my experience: ### Comprehensive Kit This kit includes 180 pieces of heat shrink tubing in seven different sizes ranging from 3/32" to 3/4". This variety ensures that I have the right size for any project, whether it's small electronics or larger cable repairs. The pieces are precut to 3.5 inches, which is very convenient for quick applications:citation[oaicite:6]{index=6}:citation[oaicite:5]{index=5}. ### Superior Shrink Ratio The 3:1 shrink ratio is particularly impressive. It recovers to one-third of its original diameter, providing a snug and secure fit over various wire gauges. This feature eliminates the common issue of 2:1 tubing not shrinking tight enough, ensuring a professional and durable insulation every time:citation[oaicite:4]{index=4}. ### Adhesive Lined for Extra Protection What sets this kit apart is the adhesive lining inside the tubing. When heated, the adhesive melts and flows, creating a waterproof seal and providing excellent insulation. This feature is especially useful for automotive, marine, and outdoor applications where moisture resistance is crucial:citation[oaicite:3]{index=3}. ### Easy to Use Using this heat shrink tubing is straightforward. Simply slide the tubing over the connection and apply heat with a heat gun. The tubing shrinks quickly and evenly, making it easy to achieve professional results even for beginners. The dual-wall construction adds extra durability, with the outer wall providing abrasion resistance and the inner wall creating a strong adhesive bond:citation[oaicite:2]{index=2}:citation[oaicite:1]{index=1}. ### Excellent Value for Money At $14.99, this kit offers great value. The quality of the tubing and the comprehensive selection of sizes make it a cost-effective solution for a wide range of electrical insulation tasks. Free expedited shipping and returns add to the overall value, making it a hassle-free purchase:citation[oaicite:0]{index=0}. ### Final Thoughts Overall, the Wirefy Heat Shrink Tubing Kit is a high-quality, versatile product that meets all my electrical insulation needs. Its easy application, strong adhesive lining, and durable dual-wall construction make it a must-have for any DIY enthusiast or professional. I highly recommend this kit for anyone looking for reliable and effective heat shrink tubing. ... show more
Reviewed in the United States on June 19, 2024 by Trevor K Smith
    • Nice quality for a good price
Size: Kit - 180 pcs Color: Black - 180 pcs
This is a nice heat shrink especially for the money. They have always held up good, even exposed to weather. They shrink up at a good temperature and have a good amount of adhesive that you can see come out after shrunk. Will continue to reorder this
Reviewed in the United States on March 30, 2026 by crystal hoke
    • Cut to fit and worked like a charm.
Size: 1/4" - 50 Feet Color: Black
Solid choice. I was making a light project for the wife and needed some heat shrink I could place over the wiring so it looked less DIY. This was the perfect choice. I was able to cut the length I needed, slide it over the wires and then heat it to a nice snug fit using my heat gun. The 1:3 shrink rate is highly accurate and my only suggestion would be to cut less than you need since it will extend as it shrinks. Overall, easy install and great value for the money. ... show more
Reviewed in the United States on November 14, 2025 by Nick..
    • Very nice
Work amazing, shrink more than expected. Feel quality and enough sizes to fit anything. The waterproofing adhesive in them seems to hold up very well.
Reviewed in the United States on April 10, 2026 by Tim
    • highly recommended!
Size: 1/4" - 50 Feet Color: Black
if you use any amount of shrink tube this should be the only type you buy! I love this stuff. it works great, it seals, insulates and makes me a lot more confident in every connection I make. highly recommend
Reviewed in the United States on June 17, 2026 by Pro-Fab
    • creates a watertight seal, great for stranded, wire, exposed to damp locations in
Size: 275 PCS Color: Black, Red, White, Transparent, Blue
Great product for the price! This set will last you a while with 275 pieces. are use this product for DC wiring in a vehicle, and I was really surprised with the quality of the product compared to similar shrink tubing I got from the automotive store. The real difference was the thickness of the rubber and the fact that there it was adhesive lined, which created a weatherproof, and essentially watertight seal, which will illuminate oxidation and corrosion, which could cause a short circuit in the future. The tubing will shrink when you heat it, and that he sieve will melt and create a very tight and strong seal. I was actually surprised with the quality of the seal. this is not an endorsement but I would highly recommend this product if you're looking for shrink tubing that only you issue percent is that a lot of the sizes are similar but the sizes are listed so you know exactly what you're getting it's just a lot of shrink tubing so it would be nice if there's a few different larger sizes, but the variety was good for the application of stranded wires, I was able to crimp the wires after sliding the shrink tubing on one end of the wires, once the wires was crimped I was able to slide the shrink tubing over the crimp and heat it up slowly with a small torch from about 5 to 6 inches away, as it shrinks after heated, the adhesive begins to melt and creates a very strong seal, I have use this product over a year ago and it's still standing strong. This is not a fake review or endorsement LMAO 🤣 ... show more
Reviewed in the United States on June 21, 2023 by Recent Customer Review
    • Excellent thickness, material & quality that is super easy to use.
Size: 275 PCS Color: Black, Red, White, Transparent, Blue
Super deal for this product and made a great hit when I got these for my husband. The thickness of these heat shrinks are unbelievable. They shrink so tight that no water could penetrate inside the connector. Great quality material and the different sizes and number of heat shrinks in this kit makes it a fantastic value. ... show more
Reviewed in the United States on September 9, 2025 by Barbara S. Dunn
    • They work as intended
Size: Kit - 180 pcs Color: Black - 180 pcs
They work well
Reviewed in the United States on July 26, 2026 by Curtis

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