Kraken Bond High Temperature Black Fireplace Sealant 2732°F - (2x10.1oz.) Fire Resistance Up to 2732°F, High Temp Fire Caulk for Ovens, Stoves, Chimneys - Fast Dry, Paintable, Non-Flammable, 2 Pack

It works! Every other heat caulk or gasket caulk I have used failed within minutes. This stuff is amazing!

appears to do the trick, just put it on the wood stove pipe and have not had but one fire in the stove...turned grey with the heat, easy to apply

Worked great. Tried another brand of sealant that just crumbled apart when it got real hot, this stuff has stays solid and keeps my stove pipe sealed as advertised.

4 stars reason the date on calk was expired by 4 months put this on a double wall pipe for a wood burning stove havnt burned anything yet will see this winter

Absolute garbage waste on money, applied to the exterior of a direct vent pipe to seal where it passes through the ceiling. After the first use it changed color and started flaking off. That area of pipe probably only gets to 200 degrees. Not sure what fireplace this is supposed to work on

good product

Perfectly matched our black stove. Sealed the gaps we needed it to & hasn’t cracked in a year. No leaks!

Works as stated. Easy to use.

Used it for a wood stove project and it seemed to have work the question is how long. I’ll check back after a few uses but it smoked and bubbled for 10-15 minutes then it turned hard and it seems to have cured and no residual smell.

Works great and drys to a hard seal