Fracture toughness of oil paints

Our colleagues had a unique opportunity to determine the fracture toughness of the 30-year-old oil paints from Mecklenburg’s Paint Reference Collection belonging to the Smithsonian Institution. The paper recently published in the Heritage Science journal provides new data for the analysis of fracturing and delamination in oil paintings and indicates that oil paints are much more vulnerable to crack initiation and propagation than glue-based ground.

This research was carried out within the GRIEG-Craquelure project (2019/34/H/HS2/00581), which has received funding from the Norway Grants 2014-2024 in cooperation with NCN National Science Centre.

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