Ceramic Flue Sealant (CFS) is a chimney restoration product designed for all types of masonry chimneys. It is an ideal product for Fireplace, Commercial and Historic Home chimney repairs.

The patented CFS material: 1. Withstands extremely high temperatures 2. Eliminates the need to downsize the flue substantially 3. Keeps costs contained, even for multiple-flue chimneys 4. Increases structural stability 5. Withstands corrosive elements that damage many types of liners

Fireplace Repair New Jersey, NJ. CFS is applied in a semi-liquid form, providing excellent adhesion to masonry surfaces, coating the entire interior surface of the flue, and filling small gaps in the masonry work with a fireproof seal. Multiple layers of the ceramic material are applied, forming a complete and durable chimney sealant, unsurpassed in the industry. Moreover, it doesn’t substantially reduce the size of the flue. This is important. The flue capacity must be sufficient to handle the volume of exhaust from the fireplace, stove or furnace. Reducing the flue size can result in smoke spilling into the home, or worse yet, allowing carbon monoxide to enter the home, a potentially lethal situation.

Thermocrete products are tested and listed by Warnock Hersey to the strict standards of UL 1777. Rigorous testing guarantees consistent product quality and durability.