Abstract <p>The conditions of contact interaction during metal forming directly affect the quality of the finished product. A high coefficient of friction leads to increased energy consumption, equipment wear, and reduced dimensional accuracy and surface quality of the finished part. In hot pressing, glass-based lubricants are recognized as efficient for reducing friction forces and creating favorable conditions for metal flow. The efficiency of the glass lubricants used is determined by their ability to form a continuous, uniform separating layer of melt at pressing temperatures that can withstand high loads and thus prevent contact between the press tool and the deforming metal. This paper presents the results of experimental studies of the properties of glass lubricants and the influence of lubricant chemical compositions on the quality of finished tubes. The obtained data may be useful for determining the most efficient chemical compositions of glass lubricants for specific pressing conditions.</p>