Riveted bulk storage tanks are prone to leakage over time, especially around rivet heads and joint areas. The internal sealants originally used to make these joints watertight can degrade due to age, chemical exposure, or mechanical stress. This degradation may lead to leaks of hazardous materials, posing risks such as environmental contamination, structural compromise, and significant economic loss due to downtime or repairs. In this case, one of our trusted installation partners were engaged by their client to address sealing failures within riveted sodium nitrate storage tanks. The tanks featured a concrete floor and a riveted steel shell. The existing rubber sealant was visibly deteriorating, particularly at the rivet lines and the critical floor-to-shell joint. The repair solution required a system that would bond effectively to both concrete and steel, remain chemically compatible with sodium nitrate, and offer long-term flexibility and adhesion.