Kraken Bond High Temperature Black Fireplace Sealant 2732°F – (2×10.1oz.) Fire Resistance Up to 2732°F, High Temp Fire Caulk for Ovens, Stoves, Chimneys – Fast Dry, Paintable, Non-Flammable, 2 Pack

Customers find the fireplace sealant works well with pellet stove piping and effectively seals flue pipes for wood burners. The product receives positive feedback for its quality, ease of application, and heat resistance, with one customer noting it can handle temperatures up to 900°C. The drying time and color receive mixed reviews - while some say it dries quickly, others report it washing away in rain, and while some appreciate the black color, others note it's not actually black. The durability is concerning, with reports of the sealant cracking or falling off.