---
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: "₨520"
currency: SCR
in_stock: false
reviews_count: 13
url: https://www.desertcart.sc/products/3604710-3m-aluminum-foil-tape-3381-1-88-in-x-50
store_origin: SC
region: Seychelles
---

# UV resistant for outdoor durability Cold-weather resistant down to -30°F Moisture & chemical barrier 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:** ₨520
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ The ultimate cold-weather, all-weather sealing sidekick you didn’t know you needed!

## 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?** ₨520 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/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

- • **Barrier Boss:** Blocks moisture, dust, flame, and chemicals to protect your surfaces.
- • **Seal Like a Pro:** Superior acrylic adhesive ensures airtight, energy-saving HVAC seals.
- • **Built for Extremes:** Performs flawlessly from freezing -30°F to scorching 250°F environments.
- • **Long-Lasting Shine:** UV resistance keeps tape durable and reliable in harsh outdoor conditions.
- • **Conforms to Every Curve:** Malleable aluminum foil backing hugs irregular surfaces with ease.

## Overview

3M Aluminum Foil Tape 3381 is a 1.88-inch by 50-yard, 2.7 mil thick silver tape designed for HVAC sealing, insulation, and metal repair. Featuring a 1.4 mil aluminum foil backing with a cold-weather acrylic adhesive, it excels in extreme temperatures (-30°F to 250°F), provides a robust moisture and chemical barrier, and offers UV resistance for long-term outdoor use. Its conformable design ensures easy application on irregular surfaces, making it a versatile, durable solution for professional-grade sealing and patching.

## 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.

Review: Great for dryers! - 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...
Review: Quailing multi-purpose foil tape. - 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.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A7I5L86 |
| Best Sellers Rank | #101,856 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #134 in High Temperature Tape |
| Brand | 3M |
| Color | Silver |
| Compatible Material | Aluminum,acrylic,metal,aluminum Foil |
| Date First Available | May 31, 2012 |
| Department | unisex |
| Is Discontinued By Manufacturer | No |
| Item Resistance | UV, dust, flame, moisture |
| Item Thickness | 2.7 Mils |
| Item Weight | 1.01 pounds |
| Item model number | 051111078129 |
| Manufacturer | 3M |
| Material | Acrylic, Aluminum, Foam |
| Number of Items | 1 |
| Product Dimensions | 2.83"L x 1.88"W |
| Recommended Uses For Product | Sealing |
| Size | 1.88 in x 50 yd |
| Special Feature | Reflective, Uv-Resistant |
| Surface Recommendation | Metal |
| Unit Count | 147.6 Feet |
| Upper Temperature Rating | 250 Degrees Fahrenheit |
| Water Resistance Level | Water Resistant |

## 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/41lU1-4c+AL.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/41pf1QFme7L.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/41qFKmKsj2L.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/51-urxpFv9L.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/51k0+3Y3e0L.jpg)

## Available Options

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

## 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...

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Work just great. Easy to use. Great price too!
*by P***Y on June 6, 2024*

Used this along with insulation wrap, as others did, to wrap the output hose of a portable air conditioner. Until I did this, the device was pretty much useless because the hose radiated so much heat that it negated the effect of the air conditioner. Fastened the insulation in-place with this tape. Working just great! NOW the air conditioner actually COOLS the space! I did not rate "easy to remove" because it's not intended to be removed easily. It can probably be removed fairly easily however, depending upon what you stick it to, but I didn't rate this.

## 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-02-07*