Nashua 2.5 in. W x 60 yd. L Silver Foil Tape

Best foil tape of all time. Stays sticky as long as surface is clean. With a clean surface, this stuff will stay on and seal up whatever you put it on for years to come.

Great tape for HVAC ducts. It's sharp so be careful.Its easy to apply and stays put. Id definitely recommend it.

This is an excellent aluminum tape and worth it's weight in gold. No other tape I've come across works as well as this does. A great way to put a seal from a dryer vent to HVAC seal that will essentially last for years. I found this tape in a house I purchased and it lasted me for several years. Can't find this in local hardware stores. Highly recommended and excellent overall!

This tape can be hard to apply in very humid places but over all it is really good and can last for years without any problems. I usually use this on solid metal dryer venting pipes. Other tapes I've used in the past either degrade over time or become difficult to take off if replacement is needed.

I've used some other brands of foil tape over the years, but none come close to the adhesion or performance of this tape. It seals and will stay sealer forever. The only thing you need to be aware of is that it can slice your fingers because its sharp.

Great quality tape for sealing joints

I don't know how I didn't know about this foil tape before, but it sticks and stays on anything, wood, metal, indoors or out. The 2.5-inch width is the best.

I couldn't get anything to seal around my HVAC unit. Tried 2 different types of aluminum tape and even got frustrated and tried regular duct tape. The temperature gradients defeated all of them. I haven't had to worry about this at all. One strip, holding strong.This is the real deal.