RINZAFFO MGN is a Roman volcanic (pozzolanic) lime plaster designed to resolve persistent dampness problems in historic and traditional buildings. Engineered to combat rising damp, salt contamination, wind-driven rain, and prolonged moisture saturation, it follows the principles of ancient Roman water limes — mortars capable of hardening even in the presence of moisture and performing reliably in marine environments. Its breathable, mineral composition allows trapped moisture to migrate outward while resisting salt damage, making it an ideal preparatory plaster for restoring damp and salt-affected masonry.