ETERART Aluminum Foil Duct Tape Heavy Duty,High Temperature Sealing and Patching,Perfect for HVAC,Air Ducts,Metal Repair,Foamboard,Insulation,Dryer Vent and More,2 Inches x 20 Yards,Silver

Used it for sealing off a window where I installed a portable AC unit for the summer. Cut it into pieces and it worked perfectly. Nice, thick backing and the tape itself sticks well. Pliable enough to squish it into corner areas as needed. Am going to order more.

Used it on my AC vents in my attic. Noticed my house wasn't getting as cool quickly. I used this to seal the spots I noticed and it worked great!! I believe it helped with my cooling, but it definitely didn't hurt. I did cut my hands a LOT while using this product, so I recommend gloves or take your time with it.

Is this item worth the money! Yes! Fit Form Function of that answer: I recently had my AC replaced and they obviously have to gut out the old stuff within my furnace system. And after all that was said and done - they did use their own tape to reseal certain areas, but overall my 90's furnace still had original ductwork and joints that should have been taped up decades ago. I bought this tape with zero experience using it and its fantastic. I took an old shop rag and just spit polished the metals joints and applied the tape and it sticks! It forms around bolts / screws / lips / corners. You can mold it a bit with your fingers. You have a good deal of control and it does not feel overly flimsy. I did have some corners with where in theory id need to cut it but was able to just mold with fingers and it would tear around sharp edges to make joints. Think of when you christmas wrap and you get to those corners and have to fancy fold to make them nice. This stuff can do it all and I had zero issue. I was even pleasantly surprised in some older areas of my furnace front that are rusting, that it would adhere and i didnt have to sand or bondo level fix it to get it to stick. Wiped with rag, made sure it was dry and it sticks. I did my entire furnace and have about 25% left. But not all my pipes and joints needed 100%. But what a great products. Wish Id done this when I bought the house because who knew how leaky that thing was until you slap that tape over a joint and go "woah - yeah this isnt meant to leak anything...haha".

Works as it should, taped dryer vent pipes together and us currently working

Just what we needed to finish winterize our duct work with our new ac/heat system. Made for the job. Good price. Ordered it one day and got it the next day. Can’t ask for more than that. Very pleased with the entire experience.

Got this to cover the top of my ball pythons mesh cage to keep the humidity up. It worked as intended. Some parts come up but it’s mesh so that’s to be expected. I just put some black electrical tape to keep those parts down. The aluminum foil tape is necessary tho since the heating elements are on half the time.

This is tremendous tape! I have a passenger window on my 1994 vehicle that the window keeps rolling down. Motor is burned out. I taped the window up and this product has not melted, and endured through 100+ degree heat, and 20 below F freezing cold for 2 full years now. It is better than any other tape I have ever put on that window.

This does not stick to plastic or even some metals. It sticks to itself. I was trying to rescue something plastic to a metal bar (the plastic tabs broke off). It did not work for my project.