The article presents a detailed analysis of the working palettes used by Almada Negreiros at the DN Building in Lisbon from 1939 to 1940. The study offers a comprehensive examination of the materials and techniques employed by the artist, focusing on the use of Cd-based pigments. Various analytical methods, including technical photography, spectrophotometry, and microscopy, were utilised to investigate the composition of the paint layers and pigments.
Results from the analysis revealed the presence of cadmium pigments, cobalt blue, and other chromophores in the paint layers, indicating Almada’s use of a fresco painting technique. Additionally, ultramarine blue, gypsum, and aluminosilicate compounds were identified in the paint layers, shedding light on the artist’s color palette and material choices.
The study provides valuable insights into the artistic practices of Almada Negreiros and offers a deeper understanding of the pigments and materials he used in his work. By comparing the analysed pigments with those from a manufacturer, the researchers aimed to determine if Almada could have utilized these pigments during the specified time period.
Overall, the research contributes to the preservation and interpretation of Almada Negreiros’ artistic legacy, offering a glimpse into his creative process and the technical aspects of his work. The findings enhance our knowledge of the historical context and artistic techniques employed by the renowned artist during the construction of the DN Building in Lisbon.
