In master's thesis we compared gelling systems and materials, that are capable of retention of solvents for removing protective varnish on paintings. The properties of gelling systems and the Evolon® CR material are presented, compared with the use of free solvents and classified in a table according to the classification of green solvents. We described two paintings, Castle and Portret, wich have different surface and varnish properties. We determined the stratigraphy and type of materials through scientific research. We presented the evaluation criteria that we took into account during tests (work). We described the procedures and results and added visual material for clarification, in addition, we compared results of the final and most successful tests with each other and presented them in graphical form.
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