---
product_id: 304108804
title: "Wirefy 3/8\" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He..."
brand: "wirefy"
price: "€ 88.97"
currency: EUR
in_stock: true
category: "Wirefy"
url: https://www.desertcart.hr/products/304108804-wirefy-3-8-heat-shrink-tubing-3-1-ratio-adhesive
store_origin: HR
region: Croatia
---

# Adhesive dual-wall waterproof seal 3:1 shrink ratio for precision fit 50ft flexible roll for custom cuts Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He...

**Brand:** wirefy
**Price:** € 88.97
**Availability:** ✅ In Stock

## Summary

> 🔥 Shrink it, seal it, secure it — the pro’s choice for flawless wiring! 🛡️

## Quick Answers

- **What is this?** Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... by wirefy
- **How much does it cost?** € 88.97 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/304108804-wirefy-3-8-heat-shrink-tubing-3-1-ratio-adhesive)

## 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

- • **Precision Fit Every Time:** 3:1 shrink ratio ensures a snug, professional-grade seal that outperforms standard 2:1 tubing.
- • **Custom Lengths, Zero Waste:** Generous 50-foot roll lets you cut exactly what you need, eliminating the hassle of pre-cut kits.
- • **Certified Safety You Can Trust:** UL-listed for flame resistance and electrical insulation, meeting rigorous industry standards for peace of mind.
- • **Built to Withstand Harsh Conditions:** Durable polyolefin material resists abrasion, heat, and oil, ensuring long-lasting insulation in demanding environments.
- • **Ultimate Protection Against Elements:** Adhesive-lined dual-wall design creates a waterproof and oil-proof barrier, perfect for marine and automotive use.

## Overview

Wirefy Heat Shrink Tubing offers a superior 3:1 shrink ratio on a 50-foot roll of durable, adhesive dual-wall polyolefin tubing. Waterproof, oil-proof, and UL-certified, it delivers reliable insulation and protection for electrical, automotive, and outdoor applications, making it the trusted solution for professionals demanding precision and durability.

## Description

desertcart.com: Wirefy | Heat Shrink Tubing - 3/8" inch - 3:1 Ratio - Adhesive Dual Wall Waterproof - Heat Shrink Tube - Heatshrink Tubes - Black - 50 Feet Roll | Trusted UL Certification : Industrial & Scientific

## Features

- 3:1 SHRINK RATIO: Wire shrink wrap tubing shrinks to 1/3 of its size for a tight, secure fit. Better than 2:1 tubing. Ideal for wire heat shrink tubing in electrical or automotive use.
- WATER & OIL PROOF: Adhesive lined heat shrink tubing melts and seals for a waterproof and oil proof bond. Reliable shrink tube for wires in marine, auto, or outdoor applications.
- 50FT FLEXIBLE ROLL: 3/8" heat shrink tubing on a 50ft roll. Cut any size you need. Better than precut kits. Perfect electrical shrink wrap tubing for custom cable runs.
- DURABLE INSULATION - Electrical heat shrink tubing resists abrasion, oil, and heat. Use shrink tubing for wires in harsh environments. Strong, flexible, and durable insulation.
- UL LISTED SAFETY – UL-listed heat shrink tubing meets rigorous safety and performance standards; guarantees reliable insulation and flame resistance in critical automotive, and electrical applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08W9BRKZQ |
| Best Sellers Rank | #1,318 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Industrial Heat-Shrink Tubing #1,148 in Electrical Equipment |
| Brand | Wirefy |
| Brand Name | Wirefy |
| Customer Reviews | 4.7 out of 5 stars 33,054 Reviews |
| Item Dimensions L x W | 9.84"L x 2.56"W |
| Item Length | 600 Inches |
| Item Thickness | 0.38 Inches |
| Item Weight | 1.1 Pounds |
| Manufacturer | Wirefy |
| Manufacturer Part Number | Wirefy-DWT-9.5-B |
| Material | Polyolefin |
| Material Type | Polyolefin |
| Model Number | Wirefy-DWT-9.5-B |
| Number of Packs | 1 |
| Product Dimensions | 9.84"L x 2.56"W |
| Recommended Uses For Product | Electrical Insulation, Automotive Applications, Outdoor/Harsh Environments |
| UPC | 850026973037 |
| Unit Count | 50 Feet |

## Product Details

- **Brand:** Wirefy
- **Item Thickness:** 0.38 Inches
- **Material:** Polyolefin
- **Product Dimensions:** 9.84"L x 2.56"W
- **Recommended Uses For Product:** Electrical Insulation, Automotive Applications, Outdoor/Harsh Environments

## Images

![Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... - Image 1](https://m.media-amazon.com/images/I/71jVkJH53ML.jpg)
![Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... - Image 2](https://m.media-amazon.com/images/I/71wxLDwqrHL.jpg)
![Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... - Image 3](https://m.media-amazon.com/images/I/7175FwIA2LL.jpg)
![Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... - Image 4](https://m.media-amazon.com/images/I/71lsJeA7PjL.jpg)
![Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade He... - Image 5](https://m.media-amazon.com/images/I/71WLgzBobhL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this start off as 1/2inch then shink down**
A: Yes it does.
I have 1/4'', 3/8'', & 1/2'' and they all measure at least their diameter before shrinking.
I won't use anything but Wirefy tubing!  I like the 3:1 best for my uses.

**Q: what is the operating temperature rating?**
A: From my use it appears to have an operating temperature of between 600F and 900F. Unless the tubing is physically contacting a heat source I would say its save to use at near 1000F. Within 1/8" from a industrial soldering iron that idles at 980F It is safe. It may over-harden if exposed to this level of heat for a length of time (Over 30 min.) Contact heat will burn this at even a low temp.( i.e. laying across an engine's exhaust manifold. It would would work well in nearly any engine compartment. Hope this helps. For short runs this stuff is tough.

**Q: Will it work on 14awg wire?**
A: Yes, 3/16" heat shrink tubing will work on 14AWG wire.

**Q: Is this heat shrink resistant to gasoline?**
A: It is resistant to gasoline. However, we do not recommend to leave it submerged in gasoline.

## Frequently Bought Together

- Wirefy 3/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - Black - 50 Feet Roll | Wire Heat Shrink Tubing, Wire Shrink Wrap Tubing, Heat Shrink Wire Tubing
- Wirefy 150 PCS Wire Spade Connectors - Female Spade Connector Heat Shrink - Quick Disconnect Wire Connectors - Electrical Spade Terminals - Female Spade Connector 16-14 Gauge | Blue Spade Connectors
- Wirefy 200 PCS Heat Shrink Butt Connectors Red 22-16 AWG - Marine Grade Butt Connectors - Wire Butt Splice Connectors - Electrical Waterproof Heat Shrink Butts

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**Shop now:** [https://www.desertcart.hr/products/304108804-wirefy-3-8-heat-shrink-tubing-3-1-ratio-adhesive](https://www.desertcart.hr/products/304108804-wirefy-3-8-heat-shrink-tubing-3-1-ratio-adhesive)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-24*