--- product_id: 489810029 title: "ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft" brand: "elecfun" price: "€ 39.35" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/489810029-elecfun-3-inch-heat-shrink-tubing-roll-3-1-large store_origin: HR region: Croatia --- # Marine grade adhesive lining 3:1 shrink ratio for tight seal Dual wall abrasion & moisture protection ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft **Brand:** elecfun **Price:** € 39.35 **Availability:** ✅ In Stock ## Summary > 🔥 Seal it tight, protect it right! 🛠️ ## Quick Answers - **What is this?** ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft by elecfun - **How much does it cost?** € 39.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/489810029-elecfun-3-inch-heat-shrink-tubing-roll-3-1-large) ## Best For - elecfun enthusiasts ## Why This Product - Trusted elecfun 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 lining for ultimate moisture and corrosion defense. - • **Versatile 4-Foot Roll:** Generous length for multiple projects, from wiring wraps to heavy-duty cable protection. - • **Marine-Grade Reliability:** Certified to withstand harsh marine environments—perfect for automotive, industrial, and DIY pros. - • **Precision 3:1 Shrink Ratio:** Achieve a snug, professional seal that shrinks from 3" to 1" effortlessly. - • **Certified Safety & Compliance:** UL-listed and meets SGS, RoHS, REACH, CE, ISO9001 standards for peace of mind. ## Overview ELECFUN’s 3-inch heat shrink tubing offers a robust 3:1 shrink ratio with dual-wall construction and marine-grade adhesive lining, delivering superior abrasion resistance and waterproof sealing. Ideal for professional-grade electrical insulation, corrosion protection, and strain relief across automotive, marine, and industrial applications. UL-listed and globally certified, this 4-foot roll ensures durable, long-lasting wire protection with a sleek, easy-to-use design. ## Description Looking to fix a damaged wire, seal out moisture, or provide enhanced strain relief? ELECFUN heat shrink tubing is a great solution, which used in automotive, marine electronics, DIY, and home wiring projects. Such as: 1.Electrical insulation (wire repairs, insulating terminals wires, protecting charging cables, car battery cable ends) 2. Environmental seal to protect from moisture, UV, fuel, and chemicals 3. Strain relief for electrical terminals 4. Grouping loose wires (usually in wire end) 5. Creating thermal insulation for heat-sensitive components 6. Protecting surfaces against abrasion, peeling, fuel resistant, and denting... When heating with a heat gun or other heater, the tubing will recover to 1/3 of its original diameter, which makes it possible to repair most damaged cable jackets without removing connectors. The dual wall tube provides better rigidity and abrasion. The double thick polyolefin tubing secures durable safe for projects. Our waterproof tubing has an internal adhesive layer. When heating, shrink tubing recovers and the internal adhesive layer melts. A small fillet of clear adhesive 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. ELECFUN's heatshrink tubing comes in assortment kit, 4, 8, 10, 20, 50 Ft rolls and much more. We offer a great variety of sizes (3/32", 1/8" ,3/16" ,1/4" ,3/8" ,1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4", and larger) and colors (black, red, white, blue, clear, brown), also include 2:1, 3:1, 4:1 shrink ratio fully insulated thick tubings. If you don't know the specific size requirements, just tell me wires'gauge, and we'll give you the most accurate choice. 3 inch heat shrink tubing Heat shrink tubing kit Large heat shrink tubing Large Heat shrink tubing Heat shrink tubing Wire connectors kit ## Features - The Round Diameter is 3" / 80mm (Before Shrinking) and 1" / 25.4mm (After Shrinking). For packaging convenience, we pressure the tubing into a packing size of 5" / 127mm - Package: 1 pcs black 3 inch large marine grade heat shrink tubing roll, total length: 4 feet - 3:1 Shrink Ratio: Shrink ratio of our industrial heatshrink tube is 3:1, which makes a tighter seal. Shrinkage temperature: 80 - 125 ℃, professional connections made in seconds - Adhesive Lined Heat Shrink Tubing: While heating, the adhesive lined comes out and seals the connection, creating water tight and long-lasting sealing - Dual Wall Tube and Safer: Outer wall provides abrasion resistance. The inner wall creates a water tight sealing and strain relief. All heat shrink tubing is UL-listed and compliant with SGS, RoHS, REACH, CE, and ISO9001 standards - Wide Applications: ELECFUN's waterproof shrink tube are mainly used for industrial, ship, automotive, wire links, anti-rust and anti-corrosion protection of solder joints, wiring wrap, cable protection, and audio and electrical DIY - More Sizes: Our factory offers various color and size (e.g. 3/32" ... 1.25",1.5",1.75", 2.5",3",3.5", 4", and larger dia) small, big, rolls and kits, shrink ratio 2:1, 3:1, and 4:1. Support custom size, special usage tubes and high volume B2B purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09STBHCG2 | | Best Sellers Rank | #1,204 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #6 in Industrial Heat-Shrink Tubing | | Brand Name | ELECFUN | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (1,652) 4.6 out of 5 stars | | Item Dimensions L X W | 48"L x 1"W | | Item Length | 4 Feet | | Manufacturer | ELECFUN | | Material Type | Polyolefin | | Maximum Pressure | 10 Bars | | Nominal Wall Thickness | 3 Inches | | Outside Diameter | 3 Inches | | Unit Count | 4.0 Feet | | Upc | 192389013099 | ## Product Details - **Brand:** ELECFUN - **Color:** Black - **Item Length:** 4 Feet - **Manufacturer:** ELECFUN - **Material:** Polyolefin - **Maximum Pressure:** 10 Bars - **Nominal Wall Thickness:** 3 Inches - **Outside Diameter:** 3 Inches - **Product Dimensions:** 48"L x 1"W - **UPC:** 192389013099 ## Images ![ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft - Image 1](https://m.media-amazon.com/images/I/610YxK+OsIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality heat shrink tubing *by on Reviewed in the United States May 17, 2026* Exactly what I needed, has the adhesive in it so it's super durable. the red is red, not orange so color is spot on. super thick and flexible for it's thickness. and exactly what I need for heavy gauge wire. Compatible with pretty much anything. Super easy to use. use a heat gun and it shrinks and adheres perfectly. for the price I wish I got 10ft. ### ⭐⭐⭐⭐⭐ Good product. *by on Reviewed in the United States May 26, 2026* Worked perfectly. Right size for my heavy wire. ### ⭐⭐⭐⭐⭐ Honey, I Shrunk The Wraps *by on Reviewed in the United States May 15, 2026* Today’s purchases are four foot rolls of both black and red large heat shrink for electrical applications. They came sealed and packed together. I wanted red and black heat shrink for my car audio installations. This purchase allowed me to conveniently buy, not only both red and black together, but the rolls allow me to cut them as long or as short as I need at the moment. I used them to distinguish between the power and ground wires since the insulation is the same color. It also made the install much cleaner looking and protected the install from shorts. These sheat shrinks seem to have an additional adhesive on the inside, meaning once they are on, they are not coming off. This is really great for securely protecting your equipment, but not so great if you have to remove them. I recently started getting into using the heat shrinks, but now that I am, I want everything to have shrink on it. These tubes are super easy to use and work on a wide range of sizes, shrinking up to four times. The quality and results that you get from these are great, and they are very affordable, making them a very good deal. If you like using heat shrink, and you are looking to get some or replenish your stock, I would highly recommend these, because they are a great value. ## Frequently Bought Together - ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft - XHF 2 Inch (50mm) 3:1 Waterproof Heat Shrink Tubing Marine Grade Wire Cable Adhesive Lined Tube Insulation Seal Against Moisture Corrosion and Air Leakage, 4 Ft Black - 2 Inch Heat Shrink Tubing - 5 Ft 3:1Ratio Waterproof Heat Shrink Tubin - Adhesive Lined,Dual Wall Adhesive Shrinkable Wire Wrap Tube - Black --- ## 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.hr/products/489810029-elecfun-3-inch-heat-shrink-tubing-roll-3-1-large](https://www.desertcart.hr/products/489810029-elecfun-3-inch-heat-shrink-tubing-roll-3-1-large) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-19*