---
product_id: 717948403
title: "ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing)"
brand: "elecfun"
price: "₨1986"
currency: SCR
in_stock: true
reviews_count: 5
category: "Elecfun"
url: https://www.desertcart.sc/products/717948403-elecfun-3-inch-heat-shrink-tubing-roll-3-1-large
store_origin: SC
region: Seychelles
---

# Adhesive-lined waterproof seal 3" diameter before shrink 3:1 shrink ratio for tight seal ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing)

**Brand:** elecfun
**Price:** ₨1986
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal it like a pro — shrink, protect, and conquer! 💪

## Quick Answers

- **What is this?** ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) by elecfun
- **How much does it cost?** ₨1986 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/717948403-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 resistance + inner waterproof adhesive for ultimate protection.
- • **Certified Safety & Quality:** UL-listed, RoHS, REACH, CE, ISO9001 compliant for peace of mind.
- • **Precision 3:1 Shrink Ratio:** Ensures a snug, professional-grade seal every time.
- • **Massive 3-Inch Diameter Roll:** Fits large cables & marine-grade projects with ease.
- • **Versatile Industrial & DIY Use:** Perfect for marine, automotive, electrical, and corrosion protection.

## Overview

ELECFUN’s 3-inch marine-grade heat shrink tubing offers a robust 3:1 shrink ratio with dual-wall adhesive lining, delivering waterproof, abrasion-resistant insulation. UL-listed and compliant with top safety standards, this 4-foot black roll is engineered for professional electrical, marine, and automotive applications, ensuring durable, corrosion-proof wire protection.

## Description

ELECFUN is a subsidiary of a 20-old company with strong factory resources, and collaborating with some Fortune 500 companies. ELECFUN has specialized in heat shrink tubing, wire terminal connectors, and battery cable end for years and has achieved unanimous acclaim in the industry. We provide top-quality heat shrink tubes at reasonable prices. ELECFUN empowers electricians and DIY lovers to make professional electrical connections through quality products. Our industrial heat shrinking tubing for wires has excellent flame retardant and performance, weatherproof, good tightness, acid and alkali resistance, anti-aging, rust prevention, oil resistant, corrosion protection, durable. Our marine grade heat shrink wrap is perfect for boat, marine, automotive, electrical, eventronic, wires, etc.ELECFUN's heat shrink tubing comes in assortment kit, 4 Ft rolls, 8Ft roll, 10Ft roll, 20Ft roll, 50 Ft rolls and much more on desertcart. 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 the gauge of the wires, and we'll give you the most accurate choice. Our factory supports customized sizes and high volume B2B purchasing, please keep in touch by desertcart message.

Review: Good product; wraps the wires right; worked as expected
Review: I used it to repair some 12volt cable that had chafe areas and the shrink tubing worked great.

## Features

- Round Diameter: 3" / 80 mm (Before Shrinking), 1" / 25.4 mm (After Shrinking). The flat Diameter is 5" / 127 mm (Before Shrinking). As shown in the second picture
- 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 weatherproof 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
- Advantage: Our factory offer a great variety of colors and sizes (3/32” to 3”) rolls and kits. Supporting customized sizes, special usage tubing and high volume B2B purchasing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09STBHCG2 |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Black-4ft |
| Customer Reviews | 4.6 4.6 out of 5 stars (657) |
| Cutting Diameter | 80 Millimetres |
| Date First Available | 27 April 2022 |
| Item Package Quantity | 1 |
| Item Weight | 308 g |
| Item diameter | 80 Millimetres |
| Item model number | RSG-D 3in-black |
| Manufacturer | ELECFUN |
| Material | Polyolefin |
| Measurement System | Metric |
| Part number | RSG-D 3in-black |
| Shape | Roll |
| Size | 3" |
| Specific uses | Insulation and protection |
| Specification met | UL , RoHS |
| Style | Black-4Ft |

## Product Details

- **Brand:** ELECFUN
- **Colour:** Black-4ft
- **Manufacturer:** ELECFUN
- **Material:** Polyolefin
- **Maximum pressure:** 10 Bars
- **Specific uses for product:** Insulation and protection
- **UPC:** 192389013099

## Images

![ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) - Image 1](https://m.media-amazon.com/images/I/41PwcJffL4L.jpg)
![ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) - Image 2](https://m.media-amazon.com/images/I/41ff85Gmg-L.jpg)
![ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) - Image 3](https://m.media-amazon.com/images/I/41zPYxu0PSL.jpg)
![ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) - Image 4](https://m.media-amazon.com/images/I/512pp6Uj9PL.jpg)
![ELECFUN 3 inch Heat Shrink Tubing Roll 3:1 Large Marine Grade Heatshrink Tube Dual Wall Adhesive Lined Shrinkable Wiring Wrap, Fully Insulation (4 Feet Black Tubing) - Image 5](https://m.media-amazon.com/images/I/51Khr5Mz6OL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***B on 27 June 2023*

Good product; wraps the wires right; worked as expected

### ⭐⭐⭐⭐⭐ Review
*by A***N on 3 November 2024*

I used it to repair some 12volt cable that had chafe areas and the shrink tubing worked great.

### ⭐⭐⭐ Review
*by A***R on 22 December 2023*

Doesn’t shrink down very much, and requires a tremendous amount of heat. Overall pretty miserable to work with.

## Frequently Bought Together

- ELECFUN 3/4 Inch 8 Ft Heat Shrink Tubing Roll, 3:1 Marine Grade Adhesive Lined Heatshrink Wire Tube, Waterproof Dual Wall Wiring Wrap for Cable Sealing Oil-Proof Wear-Resistant (4 ft Black & 4 ft Red)
- XHF UL Listed 1/2 Inch 10Ft 3:1 Waterproof Heat Shrink Tubing Roll Marine Grade Adhesive Lined Heat Shrink Tube, Insulation Sealing Oil-Proof Wear-Resistant Black
- 1/2 Inch Heat Shrink Tubing - 10 Ft 3:1Ratio Waterproof Heat Shrink Tubin - Adhesive Lined,Dual Wall Adhesive Shrinkable Wire Wrap Tube - Black

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-21*