Preliminary Diagnostic Survey of Deteriorated Paint Layers at the Maritime Station of Rocha Do Conde De Óbidos, Lisbon: A Multianalytical Research
The article presents a preliminary diagnostic survey conducted on deteriorated paint layers of controversial mural paintings at the Maritime Station of Rocha do Conde de Óbidos in Lisbon. The research, focusing on decay phenomena and painting materials used by Almada Negreiros, aimed to identify and map the main deterioration features and underlying decay mechanisms. Laboratory analyses, including XRF and optical microscopy, were employed to investigate the composition of the paint layers and the presence of various pigments. The study revealed that the yellows, browns, blacks, and light greens were the