Fire Cement 0.5kg is a high-performance, ready-mixed compound designed to seal joints and cracks in areas exposed to extreme heat. Withstanding extremely high temperatures, it’s ideal for use around fireplaces, multi-fuel stoves, flue pipes, boilers, cookers, and other solid fuel appliances. This fire cement creates a strong, air-tight seal once cured and adheres well to most masonry and metal surfaces including fire bricks, clay, and cast iron. Simply apply with a trowel or spatula, allow to dry, and slowly heat to cure.