High Temperature Black Fireplace Sealant - (1 x 3.8 oz) - Fire Retardant, Fire Retardant up to 3500F for Oven, Stove, Chimney - Quick Dry, Non-Flammable, Low Odor, 1 Pack

Works great! Good consistency and hard as a rock when it heats up.

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

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.

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