Everbuild KOS Fire Cement is a ready-mixed, high-temperature repair compound designed for patching and sealing fireplaces, flue pipes, solid fuel ovens, boilers, and central heating systems. Formulated with a blend of thermo-setting resins and inorganic fillers, it can withstand temperatures up to 1250°C without compromising strength or integrity. The pre-mixed formula is easy to apply and adheres strongly to materials such as brick, block, stone, and clay. Its muted finish blends seamlessly with most fire surrounds and heating appliances, ensuring a clean, discreet repair. Ideal for internal use, this 1kg tub provides coverage of approximately 3m², depending on joint dimensions. Please note: due to the inclusion of silicic acid in the formulation, protective gloves and goggles are recommended during application. Key Features: Suitable for all types of fire and high-temperature applications. Withstands heat up to 1250°C. Ready-mixed for fast and easy application. Strong adhesion to brick, stone, block, and clay. Low vapour pressure (23 hPa). Asbestos-free. Ideal for fireplaces, flue pipes, ovens, and boilers. Suitable for internal use only.