Paint Coating Technologies for Railway Axles-Current State and Development Directions

Abstract. This paper presents a review of current paint coating systems used for protecting railway axles. It discusses normative requirements (EN 13261 [1], DB TL 918 300 [2], ISO 9466 [3], IK 001/2024 [4]) and the test methods used to assess protective and adhesive properties of coatings. One- and two-layer systems are compared, with their advantages and limitations indicated. The final part describes development directions, including thermo-sensitive coatings and systems with reduced or increased thickness, as a response to growing operational and environmental requirements.