Sailors Memorial

Sailors Memorial – Lisbon, Portugal

Built: 1960 for the 500th birthday of the Portuguese Discoverers

Building Material: Cover of Limestone Tiles

Type of Soiling: Moss, Sand Crepe, Graffiti, Plaster Blistering

Cleaning Equipment: Facade Clean Trailer (FCT), 0.1–0.3 mm Glas Sand, Air with 3.5 bar or 51 psi pressure

Period of Cleaning: May–June 1990