Gunite Refractory Lining is a vital process for enhancing the longevity and safety of chimneys. This method involves spraying a specialized, heat-resistant concrete mixture onto the interior walls of the chimney. The gunite application forms a robust barrier that shields the underlying brick or concrete from extreme temperatures, corrosive gases, and combustibles. As it cures, the gunite lining hardens into a durable, heat-resistant shield, ensuring optimal protection and extending the lifespan of the chimney.