





🛠️ The cold-weather tape that keeps your home—and your reputation—sealed tight!
3M Aluminum Foil Tape 3381 is a 1.88-inch by 50-yard, 2.7 mil thick silver tape engineered for professional-grade sealing and patching. Featuring a 1.4 mil aluminum foil backing with a pressure-sensitive acrylic adhesive, it excels in extreme temperatures (-30°F to 250°F) and high humidity. This UV-resistant, moisture-proof tape conforms easily to irregular surfaces, making it perfect for HVAC ducts, insulation, foam sheathing, and metal repairs. Trusted by pros for durability and energy efficiency, it’s the ultimate cold-weather sealing solution.



| ASIN | B00A7I5L86 |
| Best Sellers Rank | #90,453 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #114 in High Temperature Tape |
| Brand Name | 3M |
| Color | Silver |
| Compatible Material | Aluminum,acrylic,metal,aluminum Foil |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,532) |
| Included Components | Aluminum Foil Tape, 1 Roll |
| Item Dimensions L x W x Thickness | 2.83"L x 1.88"W |
| Item Thickness | 2.7 Mils |
| Item Type Name | 3M Aluminum Foil Tape 3381, 1.88" x 50 yd, 2.7 mil, Silver, HVAC, Sealing and Patching, Moisture Barrier, Cold Weather, Air Ducts, Foam Sheathing Boards, Insulation, Metal Repair, 051111078129 |
| Manufacturer | 3M |
| Material Type | Acrylic, Aluminum, Foam |
| Number of Items | 1 |
| Other Special Features of the Product | Reflective, Uv-Resistant |
| Recommended Uses For Product | Sealing |
| Size Name | 1.88 in x 50 yd |
| Surface Recommendation | Metal |
| Unit Count | 147.6 Feet |
| Upper Temperature Rating | 250 Degrees Fahrenheit |
| Water Resistance Level | Water Resistant |
P**X
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...
P**Y
Work just great. Easy to use. Great price too!
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.
J**.
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.
C**L
Metal tape
This 3M high temperature metal tape is very good tape if you want to get the job done right. Great for window air conditioning or for duck work central air conditioning/ heat
R**T
3M makes good stuff. I used this tape to seal edges ...
3M makes good stuff. I used this tape to seal edges on some foam heat shied in the engine compartment of my van. Foil is quite thin but strong and trimmed out the heat shield nicely. The adhesive is strong also so you must be careful once you remove the paper backing so the tape does not stick to itself. After a bit of trial and error I peeled a small portion of paper, placed that portion and gradually pulled the paper off with one hand while placing the tape with the other. One more thing: the paper is difficult to separate from the tape so I used a couple pieces of masking tape placing one on the corner of the paper and the other on the foil- works great. Recommended
J**O
This stuff is never coming off
Used this stuff to seal up some air leaks around the house HVAC system. Since I had so much left over I also used it to partially seal up some of the radiator opening on my car to get a little better aerodynamics and then also seal up the area around the radiator so anything that goes through the front grill has to go to the radiator and not bypass it. Multiple 80-100mph 4 hour road trips and this stuff is still hanging on just fine. whatever kind of stick goop they put in on this tape is going to take an act of god to get it off my car if that time ever comes, but till then this stuff is doing exactly what it's supposed to.
W**M
The Best Tape
3m makes the best tape. holds in all types of temperatures
J**H
Works well.
Worked great for a dryer duct.
P**S
I found so many gaps in my venting that needed taping and with this I was not only able to seal those gaps but also improve the heat distribution too.
A**A
La uso para hacer resistencia y si soporta la temperatura
M**W
Fantastic tape
C**O
lo utilicé para forrar una caja y me gustó mucho la calidad del pegamento, puede ser un poco difícil de manejar por el aluminio que es algo delicado, pero los resultados y la calidad son evidentes.
N**E
it sticks and seals
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1 week ago
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