Nashua 324A Aluminum Tape
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No. There is no metal tape that is proper for this application that I know of. This tape is meant for ductwork, not the high temps a flue will see. It is rated at -10 to 200ºF. The adhesive on the tape will be toast after a couple fires. I would peel it off and not seal the connection or use some furnace cement and work it in.
Wormyone
New Member
The bet way to do this would be to use the furnace cement like begreen suggested. This way you know that it is seald properly and it will last longer than tape
As stated above, you shouldn't count on the tape for sealing. My liner came with a small roll of tape to secure the insulation. After making the connection I pulled the insulation over the joint and wrapped it with the tape. It held up just fine...
3M 433 Aluminum Foil Tape
HIGH TEMPERATURE
Reflective wrap for high heat areas such as boiler rooms, engine supports and insulation blankets.
- Protects parts and surfaces from heat, flame, dust, water and chemical damage.
- Flame resistant. Meets F.A.R. 25.853(a).
- Handles temperatures from -65° to 600°F.
- Aluminum foil backing with high temperature silicone adhesive.
Yes, thanks for that info. 3M makes good tape for securing the insulation, though it's still not for sealing pipe joints.
Maybe not, but it still works. Here's a tape that would be "the right stuff". I wouldn't want to ever take that joint apart though...
Tech Advantage SPJS2/8 Stovepipe Joint Sealer Tape
Tech Advantage SPJS2/8 Stovepipe Joint Sealer Tape
- Non-Combustible fiberglass tape saturated with liquid non-combustible media
- which dries hard around stovepipe joints forming a permanent seal up to 2000
- degrees fairenheit
I just had the new stove hooked up to my liner, and this is what he left me with.
I've decided to insulate the liner this summer, and will be pulling it out anyway, and cement it in place then.
I'll take the tape off now, for my break in fires.
I've decided to insulate the liner this summer, and will be pulling it out anyway, and cement it in place then.
I'll take the tape off now, for my break in fires.
oconnor
Minister of Fire
Not to disparage the many good installers on here, but most just don't understand what the materials they use are designed for. They get too busy and don't take the time to read the spec for the products, and they do what they have always done.
For securing insulation to a liner, I have seen these tapes listed in the instructions. It isn't meant to stay there forever, just to hold it in place during the install. The adhesive will fail, but it won't be a hazard in these cases.
I can't answer that question other than the guess that the installer is not certified and doesn't understand that normal temps a flue liner will see. The liner could go up to 900F inside temps multiple times a day depending on the stove and how often it is reloaded. Nashua 324A is a great tape. I have used a lot of it on ductwork and insulation. But it is not the right product for this job.
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