Abstract
Abstract The article defines one of the basic conservation procedures, i.e. the fixation of wall paintings, also known as paint layer consolidation. In Polish post-war conservation practice, this has been carried out almost routinely using various binding agents; at the same time, nearly ¾ of the cases recorded during search query involved synthetic resins in the form of weak solutions or dispersions. Extensive research was conducted with the aim of determining/estimating/measuring the actual impact of synthetic binders on paint layer properties. The article discusses the results from only one group of tests associated with micromechanical properties: hardness, Young's modulus performed using the indentation method and scratch resistance. According to our knowledge, they have been used for similar purposes in the area of cultural heritage research for the first time. Three painting techniques were selected for the study, representing a variety of techniques, which are common in historic paintings in Poland: lime, lime casein and animal glue, as well as five commercial products predominantly employed for painting consolidation by the Polish conservation community.
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