SynopsisA series of polymer-concrete (PC) materials were evaluated in 30% hydrochloric acid a t 90°C. I t was shown that a polymer aggregated with quartz sand is a potential candidate for use in coating o r construction materials for hydrogen-chlorine energy storage systems. The results have shown that the corrosion rate of PC in this solution is a diffusion-controlled process. The major weight loss can be attributed to the presence of cement in the PC samples. The influence of the sand/cement ratio. and the crosslinking agent content on the corrosion of PC samples is also discussed.