This article investigates the resistance of bricks made from secondary kaolin obtained from the Angren regionto liquid metal. Secondary kaolin is a by-product of industrial processing, and its physicochemical properties are suitablefor refractory materials. During the study, the thermal stability, mechanical strength, and corrosion resistance of the brickswere evaluated. Under laboratory conditions, the density, porosity, and structure of the bricks were analyzed. The resultsshowed that the bricks made from Angren secondary kaolin exhibit high resistance to elevated temperatures and liquidmetal, making them suitable for use in metallurgy and high-temperature industrial processes. This research provides ascientific basis for the efficient utilization of local raw materials and the optimization of refractory brick production.