MAT Mobile Accurate Temperature Management for Heritage Conservation

MAT Mobile Accurate Temperature Management for Heritage Conservation Innovation driven scientific research and precision low-stress heat transfer methodology enables smart and conscientious approaches to cultural heritage conservation.

Operating as usual

Flexible IMAT mat with carbon nanotubes enables precise targeted safe heat transfer in diverse conservation treatments. ...
05/27/2021

Flexible IMAT mat with carbon nanotubes enables precise targeted safe heat transfer in diverse conservation treatments. Here, IMAT prototype was used by Yuhui Liu in her 2020 Master thesis Research “An Innovative Heat Transfer Method for Solving Old Mending Glued with
Proteinaceous Adhesives in Manuscripts and Rare Books” at Munich TU #conservation#icom#paperconservation#conservationscience#art #conservation

Mobile Precision Mat heat transfer technology was recently used in a treatment by conservator Nina Olsson for the detach...
05/27/2021

Mobile Precision Mat heat transfer technology was recently used in a treatment by conservator Nina Olsson for the detachment of Beva-glued mural paintings by Carl Hoeckner, “The Ideals of Education”, 1929 at Grant High School, Portland. The use of the Mat was part of the removal process, but specifically the reversal of a localized repair done in 2019, where a section of the mural was detached to repair the damaged substrate plaster wall, then readhered with a Beva and Reemay interleaf. While Beva delining is a standard procedure, but it requires huge devices, such as heating tables, which cannot be taken on site or used in vertical on scaffolding. More on Mat: precision-mat.com #techinnovation #innovaiton #heat #structural #engineering #heritageconservation #sciences #researchers #startuplife

03/20/2021
Enzimes, gels and mild heat transfer, using IMAT: green and sustainable innovation in cleaning methods. Tomas Markeviciu...
11/22/2020

Enzimes, gels and mild heat transfer, using IMAT: green and sustainable innovation in cleaning methods. Tomas Markevicius presentation at Gels in Conservation conference at Tate #sustainability #conservation #artconservation #innovation #science https://www.academia.edu/video/x1MpJj

Iperion  HS
10/05/2020

Iperion HS

IPERION HS contributes to celebrating the #EUDayConservationRestoration with its services available on the website (http://www.iperionhs.eu/access-to-facilities/). Ready to help heritage scientists to know in-depth, preserve and restore European heritage! A new call for access will be launched soon. E.C.C.O. - European Confederation of Conservator-Restorers' Organisations, #HeritageScience, E-Rihs

We are proud to have contributed with IMAT technology and expertise of paintings conservator Tomas Markevicius for a maj...
10/05/2020

We are proud to have contributed with IMAT technology and expertise of paintings conservator Tomas Markevicius for a major treatment of Orazio and Artemisia Gentileschi painting “Judith with the Head of Holophernes”, currently shown at a major monographic exhibition of the work of Artemisia Gentileschi (1593–1654 or later), opened at the National Gallery London 3 Oct 2020 - 24 Jan 2021. http://www.alaintruong.com/archives/2020/09/30/38562248.html

https://www.facebook.com/289264431135291/posts/3274624829265888/?d=n
07/06/2020

https://www.facebook.com/289264431135291/posts/3274624829265888/?d=n

NEW Conservation Perspectives 🗞️
It's the Conservation Science issue 🔬
https://gty.art/2O11QQA

The integration of art and science is embedded in our institutional DNA.

For over three decades, our scientists have sought to harness advances in science and technology to further our ability to preserve cultural heritage.

The latest issue of Conservation Perspectives looks at the ways current scientific research is enhancing the field with new techniques that enable us to answer questions at a much higher level of detail than previously possible.

Cultural heritage institutions are coping with many challenges as the world deals with the COVID-19 pandemic. While coll...
06/09/2020

Cultural heritage institutions are coping with many challenges as the world deals with the COVID-19 pandemic. While collections are not directly at risk, the pandemic complicates their care. A new resource, “Caring for Heritage Collections during the COVID-19 Pandemic”, was developed by an ad-hoc task force at the Canadian Conservation Institute (CCI) to help staff from heritage institutions ensure that collections and heritage materials remain safe. The point of departure for the resource were the questions received from collections professionals in various countries and types of institution.
https://www.cac-accr.ca/wp-content/uploads/dlm_uploads/2020/04/cci_covid-19_en_2020-04-17.pdf

In 2011, Oxford art history professor Martin Kemp ran an experiment in which fourteen people, none of them art experts, ...
05/30/2020

In 2011, Oxford art history professor Martin Kemp ran an experiment in which fourteen people, none of them art experts, were shown genuine Rembrandt paintings as well as fake “Rembrandt” paintings (derivative works, copies after Rembrandt, and the like) while undergoing brain scans. A painting was shown to them and they were told it was by Rembrandt. Another painting was shown to them and they were told it was a fake. By measuring the pleasure centers of the brain, Kemp concluded that “the way we view art is not rational.” Being told a work was authentic (whether or not it actually was) activated pleasure centers when it was shown, which was not the case when the viewer was told it was inauthentic (even if it was actually the real deal). It’s all about anticipation. The full paper: https://www.frontiersin.org/articles/10.3389/fnhum.2011.00134/full

https://www.heritagedaily.com/2020/05/cracks-make-historical-paintings-less-vulnerable-to-environmental-variations/12831...
05/28/2020
Cracks make historical paintings less vulnerable to environmental variations - HeritageDaily - Archaeology News

https://www.heritagedaily.com/2020/05/cracks-make-historical-paintings-less-vulnerable-to-environmental-variations/128313

Historical wood panel paintings with developed craquelure patterns – networks of fine cracks in the paint– are significantly less vulnerable to environmental variations than previously assumed, according to a study in the open access journal Heritage Science. - HeritageDaily - Archaeology News

Advanced nanomaterials enable conservators to achieve results unobtainable with traditional methods. In this research “C...
05/20/2020

Advanced nanomaterials enable conservators to achieve results unobtainable with traditional methods. In this research “Carbon nanotubes in Art Conservation” conservators and scientists investigated the application of one-atom-thick tubes of graphene sheets with hexagonally positioned carbon atoms: nanotubes. It is an extraordinary material with exceptional mechanical strength, electrical and thermal properties: E-modulus supersedes steel about 10 times, electrical conductivity exceeds copper, thermal conductivity is comparable to diamond, the most thermally conductive natural material. Full publication by T. Markevicius, N. Olsson, H. Meyer, R. Furferi, M. Carfagni can be downloaded:
https://www.academia.edu/43092440/Carbon_Nanotubes_in_Art_Conservation

We would also like to mention some emerging innovative applications of mild heat transfer, among these for the treatment...
05/17/2020

We would also like to mention some emerging innovative applications of mild heat transfer, among these for the treatment of fatty acid exudates in modern and contemporary paintings. Although recommended treatment methodologies are still elusive, a conservative proposal is to reintroduce the saturated acids crystals that may be observed on unvarnished modern and contemporary egg tempera or oil paint surfaces, back into the paint film. In this case, fatty acid exudates formed within a week following a high humidity event on the surface of this unvarnished egg tempera on hardboard by Sally Haley (1980s). An initial attempted to remove the crystals mechanically was dissatisfactory, because of the change of the surface sheen. Instead, mild heat treatment was successfully used, heating sections to 45ºC for 10 minutes. The fatty acid exudates were reabsorbed by the paint film, leaving an intact surface. PowerPoint presentation of Nina Olsson and Tomas Markevicius sandbox session at the Getty’s Conserving Canvas conference at Yale University: https://www.academia.edu/42218366/New_methods_of_precision_heat_transfer_for_structural_treatment_of_paintings_on_canvas #science #technology #heritagescience #modernpaintings #artconservation #innovation

In the past, the heat transfer mat was used by paintings conservator Tomas Markevicius in a comprehensive structural tre...
05/08/2020

In the past, the heat transfer mat was used by paintings conservator Tomas Markevicius in a comprehensive structural treatment of Paolo Veronese’s Dead Christ Held by Angels, superior fragment of Petrobelli altarpiece, oil on canvas, 285 cm x 198 cm, Ottawa, National Gallery of Canada. http://shopngc.ca/cybermuse/enthusiast/veronese/videos/video-1_e.jsp While reconstructing the original format of the Ottawa fragment, lining was required. The loomed lining support and painting were enclosed in a Dartek envelope during the first phase of lining, which involved the painting without the cast lateral additions and was accomplished using the conventional heating table. During the second phase, the lateral pieces were attached using the thermal blanket, which enabled to perform a localized treatment eliminated the need to expose the whole painting to prolonged heating and cooling cycles on the heating table.

Publications:

https://www.academia.edu/42959718/Paolo_Veronese_and_conservation_of_the_Petrobelli_Altarpiece_a_discussion_on_ethics_and_treatments_choices

https://www.academia.edu/42941181/Paolo_Veronese_Conservation_and_Reconstruction_of_butchered_Petrobelli_Altarpiece_Paolo_Veronese_il_restauro_e_la_ricostruzione_della_Pala_Petrobelli_massacrata_

How did we line two large scale modern mural paintings on canvas on site? The American Institute for Conservation of His...
05/04/2020

How did we line two large scale modern mural paintings on canvas on site? The American Institute for Conservation of Historic and Artistic Works AIC Painting Specialty Group 2010 publication by Tomas Markevicius, Nina Olsson 'Flexible Thermal Blanket and Low Pressure Envelope System in the Structural Treatment of Large Scale and Traditional Paintings on Canvas' https://www.academia.edu/42938338/Flexible_Thermal_Blanket_and_Low_Pressure_Envelope_System_in_the_Structural_Treatment_of_Large_Scale_and_Traditional_Paintings_on_Canvas

https://www.academia.edu/42334603/Innovative_Applications_of_Mild_Heat_Transfer_Mat_and_Low-Pressure_Systems_for_the_Lining_and_Minimal_Structural_and_Cleaning_Treatment_of_Paintings_and_Other_Artworks

Paintings conservators Nina Olsson and Tomas Markevicius used precision heat transfer mat prototype (Imat) with carbon n...
05/01/2020

Paintings conservators Nina Olsson and Tomas Markevicius used precision heat transfer mat prototype (Imat) with carbon nanotubes, coupled with a breathable microporous membrane by the Neoshell and a mini suction platen designed by Rob Proctor in an innovative humidity treatment of a modern painting by Chuck Close (1961). The treatment aimed to reduce severely cupped modem oil paint and planar deformation of the canvas support. Published in Lo Stato d'Arte 12, IIC Italian group conference at Accademia di Belle Arti di Brera, Milan https://www.academia.edu/42911057/IMAT_il_Calore_Controllato

https://www.academia.edu/42334603/Innovative_Applications_of_Mild_Heat_Transfer_Mat_and_Low-Pressure_Systems_for_the_Lining_and_Minimal_Structural_and_Cleaning_Treatment_of_Paintings_and_Other_Artworks

What if you could roll up the heating table like a yoga mat and take for the work on site? Treatment of Howard S. Sewell...
04/27/2020

What if you could roll up the heating table like a yoga mat and take for the work on site? Treatment of Howard S. Sewell mural paintings on canvas ‘The Coming of the White Man, and Immigration’ (1937) (oil on cotton, 153 cm x 690 cm Oregon City High School, Oregon City) carried out by paintings conservators Nina Olsson and Tomas Markevicius presents an interesting case study of the treatment of a large format paintings on-site. Precision heat transfer mat was custom designed for use in the lining and consolidation treatment of two New Deal mural paintings on canvas, which required relocation. The mat was custom-made 91 x 168 cm to accommodate the height of the paintings, each composed of three separate sections, originally marouflaged to the wall as a single image. The paintings were lined onto a single continuous needled felt backing with a Reemay interleaf loaded with BEVA 371. A vacuum envelope was created with Dartek with two out flowing points connected to a GAST-0523 vacuum pump. The works were then heat bonded in sections to the backing, positioning the thermocouple sensor between the heater and the backing surface. The mat allowed the conservation treatment to be conducted on site at the school, and a new mobile approach to the structural treatment of large scale paintings on canvas was introduced, and published in ICOM-CC 2017 proceedings and AIC 2017 postprints:

https://www.academia.edu/42778212/New_approaches_to_an_old_problem_precision_heat_transfer_method_for_nuances_treatment_of_contemporary_and_modern_artworks

https://www.academia.edu/42334603/Innovative_Applications_of_Mild_Heat_Transfer_Mat_and_Low-Pressure_Systems_for_the_Lining_and_Minimal_Structural_and_Cleaning_Treatment_of_Paintings_and_Other_Artworks

We used IMAT temperature sensor to test a hand held iron in actual use. At the lowest temperature setting the iron start...
04/24/2020

We used IMAT temperature sensor to test a hand held iron in actual use. At the lowest temperature setting the iron started over 64C and wildly fluctuated up to 95 -100C at the lowest setting. Low stress temperature range was inaccessible, and when using hand irons and like devices, the artwork is essentially “rare-grilled” when the top layer is overheated, but the whole paint beneath remains cool (and stiff), and the temperature differential translates into physical stress to the paint and the whole structure. In our approach, enabled by precision mats, experimented and used in diverse treatments since 2003, we aim for the “low & slow” heat transfer, which allows to remain within the safe low stress temperature range and exploit the time to let the heat energy permeate gently the whole structure, avoiding rapid fluctuations and harmful physical stress. In comparison to the hand held iron: Imat temperature graph set at 45C, possible at any other temperature above ambient up to 75C with a step up of 0.1 C.

https://www.academia.edu/42334603/Innovative_Applications_of_Mild_Heat_Transfer_Mat_and_Low-Pressure_Systems_for_the_Lining_and_Minimal_Structural_and_Cleaning_Treatment_of_Paintings_and_Other_Artworks

We use precision heat transfer mats also in vertical, fixed with magnets. Our method allows treating dents or  other pla...
04/24/2020

We use precision heat transfer mats also in vertical, fixed with magnets. Our method allows treating dents or other planar, or paint deformations, consolidating paint in vertical, and carry out other treatments that require access to both sides of the painting, working on large paintings in situ, gallery or depot. A summary of innovative methods developed by the group of conservators at the IMAT project was published in ICOM-CC 2017 conference proceedings: https://www.academia.edu/42778212/New_approaches_to_an_old_problem_precision_heat_transfer_method_for_nuances_treatment_of_contemporary_and_modern_artworks

https://www.academia.edu/42334603/Innovative_Applications_of_Mild_Heat_Transfer_Mat_and_Low-Pressure_Systems_for_the_Lining_and_Minimal_Structural_and_Cleaning_Treatment_of_Paintings_and_Other_Artworks

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