---
product_id: 431179810
title: "1/4\" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black"
brand: "wirefy"
price: "$86.14"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/431179810-1-4-heat-shrink-tubing-4-1-ratio-adhesive-lined
store_origin: US
region: United States of America
---

# 600V rated marine-grade insulation 4:1 shrink ratio for ultra-tight fit Adhesive-lined for waterproof, durable seal 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black

**Brand:** wirefy
**Price:** $86.14
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal it tight, shine professional ⚡

## Quick Answers

- **What is this?** 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black by wirefy
- **How much does it cost?** $86.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/431179810-1-4-heat-shrink-tubing-4-1-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 Protection:** Outer abrasion-resistant layer plus inner adhesive barrier deliver unmatched strain relief and waterproofing.
- • **Generous 50-Foot Roll:** Ample length to power through multiple projects—never run short when precision matters most.
- • **Built-In Adhesive Seal:** Heat activates a strong glue lining that locks out moisture and ensures long-lasting protection.
- • **Marine-Grade Durability:** Certified UL and rated for 600 volts, perfect for harsh environments and critical electrical projects.
- • **Precision 4:1 Shrink Ratio:** Achieve a snug, professional seal that outperforms standard 3:1 tubing every time.

## Overview

Wirefy's 1/4" heat shrink tubing features a superior 4:1 shrink ratio and adhesive lining for a waterproof, durable seal. Marine-grade and UL certified, this 50-foot black polyolefin roll offers dual-wall protection and 600V insulation, making it the go-to choice for professionals demanding reliable, long-lasting electrical connections.

## Description

1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black

## Features

- 4:1 SHRINK RATIO - Recovers to 1/4 of its original diameter, and makes a tight seal. Eliminates the problem of 3:1 tubing not shrinking tight enough. The perfect black heat shrink roll. Experience our Adhesive Lined heat shrink tubing roll.
- GLUE INSIDE - When heat is applied, adhesive comes out and seals the connection, creating resistant and long-lasting insulation. Our industrial heat-shrink tubing is a must have for every DIY enthusiast. Get to know our adhesive heat shrink tubing.
- EASY TO USE - Simply slide heat shrink with adhesive over your connection point and apply heat. Professional connections made in seconds. Explore our electrical black heat shrink tubing, also usable as electrical shrink wrap tubing.
- DUAL WALL TUBING - Outer wall provides abrasion resistance. Inner wall creates resistant seal and strain relief. Also included in the set are small heat shrink tubing pieces. With our waterproof heat shrink tubing you are able to fix every wire.
- 1/4" (6.0mm) SHRINK TUBING DIAMETER - Get the exact diameter you need. 50 Feet of shrink tubing will last through many projects. Experience our heat shrink tube, wire shrink wrap tubing, heat shrink wire tubing and wire heat shrink tubing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Wirefy |
| Part number | Wirefy-DW41-6-B |
| Item Weight | 280 g |
| Product Dimensions | 19 x 6.5 x 19 cm; 280 g |
| Item model number | Wirefy-DW41-6-B |
| Size | 1/4" - 50 Feet |
| Color | Black |
| Style | Black |
| Material | Polyolefin |
| Voltage | 600 Volts |
| Item Package Quantity | 1 |
| Specification met | UL |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Wirefy
- **Material:** Polyolefin
- **Colour:** Black
- **Product dimensions:** 15.24L x 0.01W Meters
- **Maximum pressure:** 10 Bars

## Images

![1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black - Image 1](https://m.media-amazon.com/images/I/71kQ7j--HYL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Air tight? Was thinking about using this to cover flare fittings on a mini-split hvac for support.**
A: Hi,

Yes, our heat shrink tubing is air tight. If you have any other questions, please feel free to send us a direct message.

**Q: what size should i get to fit (3) 10AWG wires to make an extension cord ?**
A: Depending on the type of wire and how thick the casing on the 10 gage wire.  You might get away with 3/8 but I think it would be very tight, especially if long. So be safe and use 1/2 inch..
You will b fine.  Look a the wire you are getting at its specs.  It should tell you major dia.  Add the 3 up. 2/3rds of you total will be bare minimum . But remeber if you make it to tight before shrinking.  It will be hard to slide wire through.

## Frequently Bought Together

- Wirefy 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black
- Wirefy 1/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - a resistant Heat Shrink - Black - 50 Feet Roll

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**Shop now:** [https://www.desertcart.us/products/431179810-1-4-heat-shrink-tubing-4-1-ratio-adhesive-lined](https://www.desertcart.us/products/431179810-1-4-heat-shrink-tubing-4-1-ratio-adhesive-lined)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-19*