THE STUDY OF THEORETICAL AND PRACTICAL ASPECTS OF THE OCCURRENCE OF INTERNAL STRESSES IN POLYMERIC AND PAINT-AND-LACQUER MATERIALS AND COATINGS BASED ON THEM, WHICH HAVE A SIGNIFICANT IMPACT ON THEIR DURABILITY. Inn. Tech. 2022, 3 (09), 29-37. https://doi.org/10.17605/OSF.IO/BPVG7.