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The results of research on the development of UV-cured paint coatings for utility glass are discussed. Paint compositions differing in the type of oligomers, monomers and photoinitiators as well as additives, fillers and colouring pigments have been developed. A properly selected system of adhesion promoters, consisting of an ester derivative of phosphoric acid and an amino-functional silane, provides very good adhesion to glass without any preliminary surface treatment. In addition to very good adhesion, the coatings are characterized by very good crosslinking and resistance properties.

This study presents an eco-friendly approach to antibacterial polyester powder coatings by incorporating hybrid additives composed of biopolymers immobilized on halloysite nanotubes. Polylysine (PLY) and quaternized chitosan (CH-Q) were used as natural antimicrobial agents, while halloysite (HAL) acted as a carrier to improve dispersion and reduce leaching. HAL/PLY and HAL/CH-Q hybrids were incorporated into polyester coatings and evaluated for morphology, mechanical properties, water resistance, and antibacterial performance (ISO 22196). The HAL/PLY coating demonstrated a strong bactericidal effect, reducing Escherichia coli and Staphylococcus aureus by 99.9989% and 99.9993%, respectively. HAL/CH-Q showed moderate activity against E. coli (50.2323%) but high activity against S. aureus (98.6500%). Immobilization of biopolymers on the halloysite surface improved dispersion and barrier properties while enabling a silver-free antibacterial effect. The results demonstrate a sustainable strategy for multifunctional powder coatings based on naturally derived antimicrobial components.