Red Devil Fireplace and Stove Repair Silicate Sealant - Black

Red Devil Fireplace and Stove Repair Silicate Sealant is a non-flammable, silicate-based compound that sets rock-hard when fired. The black textured paste adheres to fire brick, cinder block, metal, and mortar. It cures with a warm fire and provides a durable, long-lasting seal that withstands temperatures up to 2700°F.