--- product_id: 231283956 title: "Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS" brand: "wirefy" price: "$0.01" currency: USD in_stock: false reviews_count: 13 url: https://www.desertcart.us/products/231283956-wirefy-heat-shrink-tubing-kit-3-1-ratio-adhesive-lined store_origin: US region: United States of America --- # Adhesive-lined for waterproof protection 3:1 shrink ratio for ultra-tight seal 275-piece kit with 7 versatile sizes Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS **Brand:** wirefy **Price:** $0.01 **Availability:** ❌ Out of Stock ## Summary > 🔥 Seal it tight, protect it right — the ultimate heat shrink kit for flawless wiring! ## Quick Answers - **What is this?** Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS by wirefy - **How much does it cost?** $0.01 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/231283956-wirefy-heat-shrink-tubing-kit-3-1-ratio-adhesive-lined) ## Best For - wirefy enthusiasts ## Why This Product - Trusted wirefy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Wall Durability:** Outer abrasion-resistant layer plus inner adhesive wall provide unmatched protection and strain relief. - • **Comprehensive Size Variety:** Seven essential diameters pre-cut to 1.75 inches, covering all your automotive and industrial wiring needs. - • **Precision 3:1 Shrink Ratio:** Ensures a snug fit that’s 3x tighter than standard tubing—no loose ends, no compromises. - • **Waterproof Adhesive Lining:** Heat-activated glue seals out moisture and dust, delivering marine-grade durability for any environment. - • **Effortless Professional Finish:** Slide on, apply heat, and achieve clean, reliable insulation in seconds—perfect for pros and DIYers alike. ## Overview The Wirefy Heat Shrink Tubing Kit offers 275 pre-cut, marine-grade polyolefin sleeves with a superior 3:1 shrink ratio and adhesive lining for waterproof, abrasion-resistant wire protection. Featuring seven versatile sizes and dual-wall construction, this kit delivers professional-grade insulation and strain relief for automotive, industrial, and marine applications. ## Description Product Description HEAT ACTIVATED ADHESIVE Creates a waterproof seal Greater tensile strength Resistant to stretch and vibration 3:1 SHRINK RATIO Recovers to 1/3 of its original diameter More versatile compared to 2:1 tubing Stays flexible WATERPROOF Connection is sealed from the elements Protection against wire corrosion Can be submerged under water Super Versatile Heat Shrink Tubing Are you looking to fix a damaged wire, seal out moisture, or provide enhanced strain relief? Wirefy waterproof heat shrink tubing is an easy to use solution that can be used in automotive, marine, hobby RC, and home electrical wiring projects. It can be used in a variety of applications such as Electrical insulation (wire repairs, insulating electrical terminals wires, protecting charging cables, insulating solder joints) Environmental seal to protect from moisture, UV and fuel Strain relief for electrical terminals Identifying wires and cables (color-coding) Grouping loose wires (usually in wire harnesses) Creating thermal insulation for heat sensitive components Protecting surfaces against abrasion, peeling, and denting 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 marine heat-shrink tubing shrinks around wires and terminals more tightly, eliminating any air gaps. Heat Activated Adhesive Lining This is a waterproof 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 waterproof. For best results we recommend using a heat gun. Dual Wall Shrink Tubing Dual wall marine grade 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 flame retardant. UL Listed This industrial grade heat shrinkable tubing is UL listed and 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). Review: would recommend these - a must to have on hand in the shop. Used for car wiring and to seal the ends with spade connectors to make a neat joint and protect the joint and reduce the chance of ingress. Also looks neater in engine bay - or wherever your using. Lots of different colours and size choice and inexpensive. Seal onto wire with a low flame on the blow lamp. But heat gun equally as good. Review: Excellent quality - Absolute Ronseal of a product. Does exactly as described. Very happy with quality and the performance of the heat shrink. I would highly recommend. ## 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 waterproof 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 1.75 inches. - EASY TO USE - Simply slide heat shrink tube over your connection point and apply heat. Professional connections made in seconds. - DUAL WALL TUBING - Outer wall provides abrasion resistance. Inner wall creates waterproof seal and strain relief. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084GWYX42 | | Best Sellers Rank | 74,809 in DIY & Tools ( See Top 100 in DIY & Tools ) 49 in Tubes (DIY & Tools) | | Brand | Wirefy | | Customer Reviews | 4.6 out of 5 stars 29,468 Reviews | | Item Dimensions L x W | 44L x 44W millimetres | | Item Length | 1.75 Inches | | Item Weight | 20 Grams | | Manufacturer | Wirefy | | Material | Polyolefin | | Model Number | Wirefy-DWT-275 | | Number of Packs | 1 | | Part Number | Wirefy-DWT-275 | | Product dimensions | 44L x 44W millimetres | | Recommended Uses For Product | Electrical Insulation, Moisture Protection, Strain Relief | | Recommended uses for product | Electrical Insulation, Moisture Protection, Strain Relief | | UPC | 857409007464 | | Unit Count | 275.0 count | ## Product Details - **Brand:** Wirefy - **Colour:** Black, Red, White, Clear, Blue - **Item length:** 1.75 Inches - **Item weight:** 20 Grams - **Material:** Polyolefin - **Maximum pressure:** 10 Bars - **Nominal wall thickness:** 2.11 millimeters - **Outside diameter:** 19.05 Millimetres - **Product dimensions:** 44L x 44W millimetres - **UPC:** 857409007464 ## Images ![Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Image 1](https://m.media-amazon.com/images/I/81MovjxTFUL.jpg) ![Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Image 2](https://m.media-amazon.com/images/I/81yp4ofSPrL.jpg) ![Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Image 3](https://m.media-amazon.com/images/I/71N1swijHpL.jpg) ![Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Image 4](https://m.media-amazon.com/images/I/718qqAxzpTL.jpg) ![Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Image 5](https://m.media-amazon.com/images/I/71WLgzBobhL.jpg) ## Questions & Answers **Q: Do you sell these kits without the adhesive lining?** A: At the moment we do not offer heat shrink tubing kits without adhesive lining. **Q: Can a hair dryer be used to heat the tubes?** A: Thank you for your question. We recommend using a heat gun as a heat source. **Q: what would be the correct size for 6242Y grade 2.5mm twin and earth cable? the cable measure 10mm x 5mm** A: If you are electrical engineer by trade your ansawer to your question should be why. Why are you using this shrink wrap on any type of twin & earth. If its been cut or broken then unless you have good knowledge of ac cabling and I presume you're competently qualified in this I would not suggest using it in any ac environment. By way of your disciption, if there is some kind of brake or join in two wires (cables) you would normally solder the joints and shrink wrap the joint to seal and secure. If in case of ac use only a joiner like waggo ect which is rated appropriately, if in doughty with any ac diy activity seek qualified abilities, you may only regret it soon or later if you don't. A bodge can kill😕🤔 **Q: Is this suitable for use in an aquarium?** A: It’s plastic so pretty inert. It depends on what you want to do with it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ would recommend these *by R***2 on 29 August 2025* a must to have on hand in the shop. Used for car wiring and to seal the ends with spade connectors to make a neat joint and protect the joint and reduce the chance of ingress. Also looks neater in engine bay - or wherever your using. Lots of different colours and size choice and inexpensive. Seal onto wire with a low flame on the blow lamp. But heat gun equally as good. ### ⭐⭐⭐⭐⭐ Excellent quality *by M***C on 4 April 2024* Absolute Ronseal of a product. Does exactly as described. Very happy with quality and the performance of the heat shrink. I would highly recommend. ### ⭐⭐⭐⭐ Good selection *by A***R on 20 May 2025* Decent for the price and a good selection of sizes ## Frequently Bought Together - Wirefy Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, 1.75" Length, Wire Shrink Wrap Tubing - Automotive Industrial Heat-Shrink Tubing - Black, Red, White, Clear, Blue - 275 PCS - Wirefy Heat Shrink Crimp Connectors Kit - Heat Shrink Wire Connectors - Automotive Wire Connectors Kit - Insulated Ring, Spade, Fork, Hook & Butt Terminal Connectors - 22-10 Gauge - 540 PCS - Wirefy 200 PCS Non Insulated Butt Connectors Kit - Butt Splice Connectors - Uninsulated Crimp Wire Connectors - 24-8 AWG --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/231283956-wirefy-heat-shrink-tubing-kit-3-1-ratio-adhesive-lined](https://www.desertcart.us/products/231283956-wirefy-heat-shrink-tubing-kit-3-1-ratio-adhesive-lined) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-14*