Nashua330X Extreme Weather HVAC Foil, Metal, Aluminum Repair Tape, 3.5 mil Thick, 46m Length, 72 mm Width

I did air conditioning years ago. This is the same stuff we got from the supply house for duct work. I could not find this at the home improvement stores. It is of excellent quality and wider than normal duct tape. Foil tape with a peel away paper backing. Sticky af.

It will start peeling off so I have to put a sealant over the top.Makes beautiful art!

Great

Honestly surprised how much better this works as compared to other ‘name’ brand tapes billed as extreme sticks to everything. Sealed all hvac floor vent ducting...as it was only roughed in and we had cold air from crawl space coming inside. Super sticky, and tough as nails tape. So far holding strong (prior tape had all come loose from heating/cooling cycles).

I used the tape to help seal some duct work in my attic. The original tape was about 12 y ears old and some of it was peeling. I live in west Tennessee and the temperature can go to the extremes in the winter and summer. The tape seems to do the job. I liked that it was wide for greater coverage. I just hope it will last in the attic. The adhesion seems very strong. Also the price on amazon was very nice compared to the big box stores.

If that's the job you're trying to do, this is likely the stuff you'll be looking for. It worked well and appeared to stick well even though it was hard to maneuver in those tight spaces. I had cold air blowing again just in time for winter.

Professional-grade in every way. I hate duct tape, which is only good for temporary, crappy patches. If you are doing professional duct work, you want tape that looks the part, and stays put. I will be in this house for a long time, and this tape will stay where I put it, for longer than I will care about. I bought the extreme weather tape so that it would stick in the worst circumstances, even if I don't hit the temperature extremes. This is top-grade stuff. Don't go cheap. Get the real thing. This is it. Buy it.

Good solution for my application, leaks in a low pitched tin roof. Very aggressive adhesive and foil backing protects from UV. A bit more fragile than I expected but I am using outside it's intended application.

I bought this tape to adhere silver insulation to my RV. I was afraid of hurting the paint but this stuff sticks well & can be removed without leaving a residue. I'm going to order an extra one to have on hand! Would definitely recommend.

I used it for sealing the open ends of the polycarbonate panels used in my greenhouse. It really sticks and looks like it will last outdoors. I have found more uses for it since then as I bought this big roll as was little more in price than one way smaller. Make sure you buy more than enough as you will find it useful for other things as well.

Very sticky and easy to apply. worked great and will recommend to anyone doing a DIY project.

Does not stick to Mylar but works well for actual ducting.