---
product_id: 3604710
title: "3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair"
brand: "3m"
price: "€ 65.15"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fr/products/3604710-3m-aluminum-foil-tape-3381-1-88-in-x-50
store_origin: FR
region: France
---

# Moisture Barrier Versatile Applications Cold Weather Performance 3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair

**Brand:** 3m
**Price:** € 65.15
**Availability:** ✅ In Stock

## Summary

> Seal the Deal with 3M! 🔒

## Quick Answers

- **What is this?** 3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair by 3m
- **How much does it cost?** € 65.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/3604710-3m-aluminum-foil-tape-3381-1-88-in-x-50)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **UV Resilience:** Durable performance in various environments, ensuring longevity.
- • **Versatile Usage:** Ideal for HVAC, insulation, and metal repairs, making it a must-have in your toolkit.
- • **Conformable Design:** Easily adheres to irregular surfaces for a seamless application.
- • **Unmatched Cold Resistance:** Withstands temperatures from -30F to 250F, perfect for extreme conditions.
- • **Superior Moisture Protection:** Creates an impenetrable barrier against moisture, dust, and chemicals.

## Overview

The 3M Aluminum Foil Tape 3381 is a high-performance tape designed for HVAC applications, featuring a robust 2.7 mil thickness and a cold-weather acrylic adhesive. It excels in extreme temperatures and humidity, providing a reliable moisture barrier and UV resistance, making it perfect for sealing and patching in various environments.

## Description

A 1. 4 mil high-strength, dead-soft aluminum foil tape, 3M Aluminum Foil Tape 3381 is coated with an acrylic pressure sensitive adhesive that performs well in a wide range of temperatures. Designed for cold weather conditions, our Aluminum Foil Tape 3381 excels in demanding temperature and humidity applications. This aluminum tape has superior UV resistance, providing good performance and durability in demanding environments. The general purpose aluminum foil backing serves as an excellent barrier against moisture, dust, flame and certain chemicals. The malleable foil is conformable and applies easily to fibrous and sheet metal ducts and other irregular surfaces. 3M Aluminum Foil Tape 3381 can be used across many industries. Some applications of this product include: HVAC, light reflecting, heat shielding, moisture barrier, thermal conducting, sealing, and splicing.

## Features

- COLD WEATHER: 1. 4 mil aluminum foil backing (2. 7 mil total thickness) coated with a pressure sensitive, cold-weather, acrylic adhesive system (-30F to 250F)
- EXCELS IN HUMIDITY: Designed for cold weather conditions and excels in demanding temperature and humidity applications
- MOISTURE BARRIER: Excellent barrier against moisture, dust, flame and certain chemicals
- UV RESISTANT: Providing good performance and durability in various environments
- CONFORMABLE: Malleable foil is conformable, capable of adhering to irregular surfaces
- APPLICATIONS: sealing foil faced foam sheathing boards, reflective insulation materials, duct wraps and residential insulation batts

## Product Details

- **Brand:** 3M
- **Color:** Silver
- **Material:** Acrylic, Aluminum, Foam
- **Number of Items:** 1
- **Recommended Uses For Product:** Sealing

## Images

![3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair - Image 1](https://m.media-amazon.com/images/I/81tsu-nSmeL.jpg)
![3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair - Image 2](https://m.media-amazon.com/images/I/81jENGadweL.jpg)
![3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair - Image 3](https://m.media-amazon.com/images/I/81E+mcJbJLL.jpg)
![3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair - Image 4](https://m.media-amazon.com/images/I/71qIxFI9pVL.jpg)
![3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair - Image 5](https://m.media-amazon.com/images/I/71oRYubiRhL.jpg)

## Questions & Answers

**Q: Does this tape come with a protective removable backing which has to be removed before applying this tape..**
A: I have found that if you tear it instead of cutting it, the ragged edge allows you to better separate the backing from the tape.

**Q: Is this painted to look like foil or is it actually aluminum? Im trying to find some aluminum tape to deter a cat from chewing cords.**
A: It's aluminum. It's basically plumber's tape used for duct work, though I bought it to use in my art. Great stuff. It should work for the cat. My cat did the same thing to all my Apple cords until I bought a set of 3 flat braided rope covered charging cords for under $10 on Groupon. Best purchase EVER. You might want to look for something something similar...it will look better than the aluminum. Amazon has these cords now ($8.99 set of 5 on Amazon Prime).

**Q: IS this tape lined or unlined?**
A: i am really not sure what you are asking but i will try. as far as lines for like straight cutting or for measuring, no there are no lines. If you are asking about maybe a coating of some sort like plastic lined, then i would call it unlined. This is just 2.7 mm think aluminum foil that is shiny on the front and sticky on the back. If you crinkle this stuff it will leave creases like aluminum foil would but it also will form to what you are sticking this to. This tape works well for taping foil insulation to ducting or taping seams of reflective material like panda film.

**Q: Will this tape work for patching a muffler?**
A: It's not quite a heavy gauge tape. I'm not sure what the spec is on the the thickness,  but Kim pretty sure they make a more heavy foil tape that can be used for a cheap/quick muffler repair.i know of some people that have done it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for dryers!
*by P***X on February 18, 2024*

Let's be real – no one gets giddy about aluminum foil tape. It's like the socks of the home repair world: necessary, but about as exciting as doing taxes. BUT, let me sing the praises of 3M Aluminum Foil Tape 3381, because this ain't your bargain-bin tape, folks. It's got superpowers I never knew aluminum foil could possess ...Why you NEED this tape in your life:HVAC's New Best Friend: Leaky ducts are the air-conditioning world's villain. This tape? It's the superhero! Seals those gaps like nobody's business, saving you on energy bills and the shivers in winter. Who knew some shiny tape could have a bigger financial impact than your stockbroker?The DIY MacGyver: Got a rattle in your car? Wobbly furniture? Hole in your kid's inflatable unicorn pool? Patch it with this tape. It sticks to practically anything, and its durability defies logic. Now if only it could make me handy enough to actually handle bigger home improvement projects...A Cold Weather Warrior: The description says "cold weather," but honestly, this tape is tough as nails year-round. Rain, sleet, heat wave – it doesn't budge. Mother Nature might as well take a coffee break, 'cause this tape won't let her ruin your repairs.Romance Revitalizer? (Seriously, hear me out!): Spouse complaining about squeaky cabinets? A "strategically" placed strip of this tape quiets that hinge better than flowers. Now, THAT'S relationship-saving sorcery right there. Disclaimer: Might not fix ALL domestic disputes.Bonus: Zombie Apocalypse Prep: I mean, have you SEEN the strength of this tape? A makeshift shelter, a weapon patch-up... This tape's versatility could buy you precious time against the undead. Look, when's the last time duct tape did that?Okay, maybe I'm overselling it a tad, but you get the point. This tape is surprisingly impressive. It's made my DIY attempts less disastrous, kept my house's temperature regulated, and might even win me brownie points with the spouse. Now, where did I put that wobbly chair...

### ⭐⭐⭐⭐⭐ Works well.
*by J***H on June 17, 2025*

Worked great for a dryer duct.

### ⭐⭐⭐⭐⭐ Quailing multi-purpose foil tape.
*by J***. on September 7, 2023*

The tape arrived as described with no issues I bought the tape to use to cover holes at the bottom of my HVAC unit to keep critters from getting into my crawl space and to secure ducting to vents I replaced. It has worked great, and held up, wonderfully even in the rain. It is also handy for any unexpected duct repairs.The tape is a quality product made by 3M that has good thickness and adhesion. I have no complaints as it met my expectations. I would recommend this product to others.

## Frequently Bought Together

- 3M Aluminum Foil Tape 3381, 1.88 in x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair
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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-26*