Aluminum Foil Duct Tape Heavy Duty Waterproof, Premium Silver Metal HVAC Heat Tapes (2"*65Feet,3.9mil), High Temperature, Dryer Vent Insulation Tape for Ductwork, Ducting, Sealing, Patching, Furnace

Works as well as any foil tape I've purchased from the big box stores. Easy to cut and shape with clean, super strong, and sharp-looking results. (but for real, speaking of sharp, this tape can cut your skin so be careful). Recommended for HVAC jobs and beyond! In this case, I used this to modify my 1-hose portable AC into a two-hose system to prevent the energy loss of the typical negative pressure setup. The tape has held up beautifully all summer!

2 for the price works for my budget. I like the easiness of the paper peeling part. This separates relatively early compered to other brands. Makes it easy to get the job done. It sticks and stays on in several surfaces. Great deal

Works great for what I was using it for. Good quality and size. Very sticky.

Covered outside refrigerant lines - very sticky, works well, just installed, no durability comment yet

This tape is great! You have no idea how many uses you can use this tape for, especially if you are creative. Highly recommend everyone have a stash of this stuff! Once, I used it over an old vans windshield, where there was peppered rust holes forming. Sealed it down really good, and the rusting had no effect for many years. Once I used it to cover metal tube framing to end the bees nesting. It sealed in hatchers and kept new ones from getting in. I'm telling you, you can do lots of stuff with this tape.

Great stuff. Sticks really well. Will purchase again.

It's great! Went a long way, I used it to tape off the tops of 2 40 gal terriums and still have plenty left over. Holds great and when removed it didn't leave a lot of residue either. Will definitely order more when we upgrade to bigger tanks.

This tape only looks like aluminum. While it does have some heat resistance it is far from "flame resistant" and will melt.For general ductwork sealing it's perfectly adequate. And no complaints with adhesion. Also easier to apply without wrinkling as with real HVAC aluminum tape.But do NOT use on flue pipes or other HOT surfaces.