Abstract <p>The influence of lithium and tin additives on the mass transfer of diffusing elements during the formation of coatings using diffusion metallization technology from a medium of low-melting liquid metal solutions is examined. It is revealed that the addition of lithium and tin leads to the intensification of the coating formation owing to an increase in the activity of the transport melt. Lithium promotes the reduction reaction of oxide films, which allows for an increase in the intensity of mass transfer and coating formation. The leading role in the removal of oxide films, in the presence of tin in transport melts, is played by the adsorption effect and dispersion of the oxide film under the action of the melt.</p>