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

This product is spot on!! I had numerous fire bricks broken in numerous pieces. I put them back together and are solid now!!! Be patient and put coat them heavy. I saved a ton of money because of this product. I'm now ready for fire season. I burn 5 cord a year for heat... Each new fire brick would have cost me $30 a piece. I put 6 back together and are solid!! Win !!

works great

Good high temp sealer

This stuff worked amazing

Terrible quality, dries up, cracks and doesn't seal anything on the outside. Ironically it works fine where I used it inside

It seams to work ok, will not know till winter when I use the wood stove

This stuff works great! I used it to seal the corners and top joints on my Vermont Castings Intepid II wood stove. It was leaking air badly at those joints, so much that I could not control the flame. But after I used this cement, I was able to shup down the air flow so I use much less wood and can make a load last almost 8 hours! I highly recommend this. You need to be able to seal joints with a caulking gun. The plastic flexible tubes are impossible to apply cement. I also used this product to re-set part of the door gasket and to install a new griddle top gasket. I has a screw on cap that effectively seals the cement from the air so it doesn't dry and harden, at least for the month I've had it stored that way.

This sealant was very easy to use. Though expensive it does work in high temperatures like a fireplace. I used it to seal the annular space opening around the gas pipe penetrating the fireplace wall. It was black in color, perfect to keep it hidden, flows easily so be careful when applying it. I won't know for a few months or more how well it works as this was used in new construction that isn't finishing for a while. Per the instructions it cures upon heating up.