The object of research is a moisture–permeable polymer concrete based on Ultimax Gravity binder. This work aims to develop a polymer concrete composition with the required moisture permeability based on the Ultimax Gravity polymer binder. Method. The method of absolute volumes was used to select the polymer concrete composition with the required moisture permeability. Results. The types and characteristics of polymer concrete are described. A comparative analysis of polymer concrete, traditional concrete, and asphalt concrete characteristics has been conducted. Modern studies related to the development of the composition of polymer concrete are analyzed. The composition of polymer concrete with the required moisture permeability based on the Ultimax Gravity polymer binder has been developed. Promising research areas have been identified to improve the characteristics of polymer concrete composition based on Ultimax Gravity binder.