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Thursday, May 16 • 3:30pm - 4:00pm
22. New Fixation Methodologies for Severe Pictorial Detachments: ‘Storm’ of Pío Collivadino

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Paintings on canvas with severe problems of adhesiveness between different pictorial strata often guide the intervention of conservation-restoration to invasive treatments that involve significant changes in the aesthetic qualities of this type of pieces. In the particular case of Storm by the argentine artist Pío Collivadino (1869-1945), the fragmentary status conformed by a large-scale of detachments, was related to variables of physico-chemical nature and frequent practices of reformulation of themes and experimentation with matter by the artist, sharpened by different reparative interventions. Between 2010 and 2016, the Tarea Center restored 112 pictorial works belonging to the collection of the Pío Collivadino Museum of the National University of Lomas de Zamora. Within this corpus, our case study, motivated in relation to its critical state of conservation, substantial conceptual and empirical questions in each of the instances that made up its conservation-restoration intervention. The restoration methodology implemented a specific multidisciplinary approach with the intention of defining a protocol for the phenomenological study of deteriorations and performance criteria. The aesthetic and conceptual material components were examined from critical, analytical (physical-chemical), theoretical and image approaches from various photographic records preserved in the artist’s personal archive. The analytical studies revealed important information regarding the internal structure, a thin base layer of powdery industrial invoice preparation and with particles included on that was overlapped with thick layers of color. The thickness measurements of cross section reflected the great disproportion previously appreciated, when the preparation base measured an average of 183 μm, the pictorial layers measured an average of 340 μm. The elemental analysis of the base of preparation with an electronic microscope and laser microwave, determined that the base layer contained the Zinc element, suggesting us to think that the base was a Zinc white. The study of the technique allowed us to know that the artist preferred to use lead white in the layers of color, the interaction of these components in a textile support of high shrinkage, resulted in a large scale adhesive failure. When we could determine the causes of deterioration, it was decided to work with some intervening variables in the mechanical behavior of works on flexible supports in favor of a method that would allow the loose fragments to be restored to their original places, stabilize the materiality and reestablish adhesion in the interface coatings pictorial and base of preparation-support. The applied fixation method was characterized by the use of various adhesives suitable for the different problems of the work; delimited parameters of temperature and relative humidity were controlled in semi-hermetic chamber and auxiliary convex supports. The mentioned variables responded to the dynamics of possible stresses within the original mechanical support-movable frame system. The success of the method allowed to conserve the different constituent elements of the work and its original assembly; technical aspects and aesthetic qualities of the praxis of a key artist in the management of art and artistic training in Argentina.

Speakers
avatar for Paola Rojo

Paola Rojo

Conservator-Restorer, Universidad Nacional de San Martín (IIPC)
Paola Rojo is conservator-restorer in the painting laboratory and professor in "The Foundations of the theory and practice of the Conservation – Restoration” at Research Institute of Cultural Heritage (IIPC TAREA) from National University of San Martín (UNSAM) in Buenos Aires... Read More →

Co-Author
avatar for Noemi Elisa Mastrangelo

Noemi Elisa Mastrangelo

Professor/Educator, Universidad Nacional de San Martín (IIPC)
I am also developing protocols for processing of images for the purpose of use in investigations of painting techniques; these tasks include the use of software measurement and quantification of parts and structure. I also work in management tasks related to the operation of the laboratory... Read More →


Thursday May 16, 2019 3:30pm - 4:00pm EDT
Uncas Ballroom Foyer Sky Convention Center, Mohegan Sun