Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study

This article will be focusing on a retouching conservation and restoration treatment, of two figurative ceramic tiles panels belonging to the Baroque artistic period. The ceramic tiles of blue and white colors dating from the final of the 18th century are inserted in a relevant historical period fo...

Full description

Bibliographic Details
Main Author: Sara Araújo
Format: Article
Language:English
Published: Grupo Español del IIC 2020-12-01
Series:Ge-conservación
Subjects:
Online Access:https://ge-iic.com/ojs/index.php/revista/article/view/841
_version_ 1811158864940236800
author Sara Araújo
author_facet Sara Araújo
author_sort Sara Araújo
collection DOAJ
description This article will be focusing on a retouching conservation and restoration treatment, of two figurative ceramic tiles panels belonging to the Baroque artistic period. The ceramic tiles of blue and white colors dating from the final of the 18th century are inserted in a relevant historical period for the Portuguese tiles art entitled Grande produção Joanina. The purpose of the intervention was the return the readability of the scenes in the panels, without hiding major signs of degradation. This conservation treatment was made within a rehabilitation project of the building that holds them, which had its own intervention criteria and in which the conservation criteria had to fit. One of the issues during this case study, was to find a commitment between the conservation ethical approaches, considering the panels will continue to be exposed outdoors and there are soluble salts present on the wall where they are settled. The intervention criteria chosen was made, using diverse solutions within materials and techniques such as the application of new ceramic elements, filling gaps with lime mortars and al fresco retouching. A capillarity and permeability based method was used to fill the glazed gaps. Retouching methods were tested including neutral tone or continuing the shapes and tones. In the end al fresco retouching method was chosen and the preparation of the new ceramic elements supported by a study of graphic and photographic documentation, completing the big gaps in the panels. The results of the chosen al fresco technique show a satisfactory level of mimicry, enough to return the readability of the panel. This technique revealed to be suitable for the retouching of ceramic substrates affected by soluble salts. The reading of the scene panels became passively also, by completion the missing parts, with the introduction of new elements what, was achieved with success too.
first_indexed 2024-04-10T05:30:26Z
format Article
id doaj.art-a1b23787cd7f4881929380dede2bb92a
institution Directory Open Access Journal
issn 1989-8568
language English
last_indexed 2024-04-10T05:30:26Z
publishDate 2020-12-01
publisher Grupo Español del IIC
record_format Article
series Ge-conservación
spelling doaj.art-a1b23787cd7f4881929380dede2bb92a2023-03-07T08:32:48ZengGrupo Español del IICGe-conservación1989-85682020-12-011810.37558/gec.v18i1.841Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case studySara Araújo0Freelance conservator This article will be focusing on a retouching conservation and restoration treatment, of two figurative ceramic tiles panels belonging to the Baroque artistic period. The ceramic tiles of blue and white colors dating from the final of the 18th century are inserted in a relevant historical period for the Portuguese tiles art entitled Grande produção Joanina. The purpose of the intervention was the return the readability of the scenes in the panels, without hiding major signs of degradation. This conservation treatment was made within a rehabilitation project of the building that holds them, which had its own intervention criteria and in which the conservation criteria had to fit. One of the issues during this case study, was to find a commitment between the conservation ethical approaches, considering the panels will continue to be exposed outdoors and there are soluble salts present on the wall where they are settled. The intervention criteria chosen was made, using diverse solutions within materials and techniques such as the application of new ceramic elements, filling gaps with lime mortars and al fresco retouching. A capillarity and permeability based method was used to fill the glazed gaps. Retouching methods were tested including neutral tone or continuing the shapes and tones. In the end al fresco retouching method was chosen and the preparation of the new ceramic elements supported by a study of graphic and photographic documentation, completing the big gaps in the panels. The results of the chosen al fresco technique show a satisfactory level of mimicry, enough to return the readability of the panel. This technique revealed to be suitable for the retouching of ceramic substrates affected by soluble salts. The reading of the scene panels became passively also, by completion the missing parts, with the introduction of new elements what, was achieved with success too. https://ge-iic.com/ojs/index.php/revista/article/view/841Outdoor tilesbaroque ceramic tilesretouchingal frescosaltsscene reconstruction
spellingShingle Sara Araújo
Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
Ge-conservación
Outdoor tiles
baroque ceramic tiles
retouching
al fresco
salts
scene reconstruction
title Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
title_full Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
title_fullStr Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
title_full_unstemmed Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
title_short Filling and retouching techniques in outdoor tiles with saline efflorescence problems. A case study
title_sort filling and retouching techniques in outdoor tiles with saline efflorescence problems a case study
topic Outdoor tiles
baroque ceramic tiles
retouching
al fresco
salts
scene reconstruction
url https://ge-iic.com/ojs/index.php/revista/article/view/841
work_keys_str_mv AT saraaraujo fillingandretouchingtechniquesinoutdoortileswithsalineefflorescenceproblemsacasestudy