CMOP: Cleaning Modern Oil Paints

Within the context of safeguarding tangible heritage for current and future generations, 20th- and 21st-century oil paintings are presenting a range of challenging problems that are distinctly different from those noted in paintings from previous centuries. Problems are often but not exclusively associated with unvarnished, unprotected surfaces. Phenomena increasingly observed include the formation of vulnerable surface 'skins' of medium on paint surfaces, efflorescence, unpredictable water and solvent sensitivity, and alarming incidences of dripping paints several years after the paintings have been completed. The current lack of understanding of the nature of change in modern manufactured oil paints means that the established empirical approach to conservation treatments such as surface cleaning are not applicable to a great number of works. In particular, commonly used systems that rely upon water as a major component cannot be applied to clean modern oil paintings. So far, few alternative methods of treatment have proven effective and as a consequence the presentation of modern oil paintings may be compromised. This project aims at making a significant impact on our understanding of the reasons behind these phenomena by exploring several aspects of paint formulations (oil fraction, pigment-medium interactions, additives) and case study works of art. This will in turn facilitate the modification and development of surface cleaning systems that are more appropriate for use on the increasing numbers of unvarnished oil paintings in international and private collections. New cleaning systems will be trialed on works of art in several internationally significant public collections. This information will be disseminated via web platforms, seminars, conferences and a documentary for the general public and the cleaning systems will be introduced through continuous professional development workshops for practicing conservators, thereby offering practical solutions to conservators facing these difficult challenges.

20th and 21st C painting collections are now of global importance, exemplified by the increasing international demand for exhibitions in museums and galleries. Modern and contemporary art represents recent history and reflects the politics and societal developments of nations and the contribution of museums and galleries to global economies is significant and remains reliant on access to works for display. Thus the conservation and preservation of art is essential to maintaining this public benefit, and the outcome of the new knowledge generated by this project will have a direct impact on public access.
While the outcomes have long term benefits to the public and private stakeholders by provision of access to modern art, the contribution of ideas and knowledge can be delivered to a wide range of audiences in a number of ways such as dissemination by publication and lectures in a range of media (print, web-based including Youtube films, public lectures, etc). In addition, the progress of research would form an integral part of education in conservation and conservation science (see Academic Beneficiaries). Through the same process novel high value tools developed as an outcome of the research will be implemented in the education of conservators, curators, and key stake holders in the public and private sectors. These concepts, research outcomes and practical solutions will be directly shared through seminars to ensure that more balanced conservation approaches can be achieved as quickly as possible. Scientific and conservation publications will be published and transferred via internet platforms including Tate Online and the GCI Modern Paints site (see Academic Beneficiaries). An international professional seminar/conference will be held at the end of the 3-year project where main findings and implications for conservation treatment and methodologies will be presented and discussed. Research content and tools will also be incorporated into professional development workshops for conservators and heritage scientists.