Fig. 6: Curing kinetics and film formation of oil paints.
From: A holistic view on the role of egg yolk in Old Masters’ oil paints
a Displays the comparison between the mass uptake (black square) of a protein-coated paint film (LW PCP at 4 vol% of EY), normalized to its oil content, over time and the corresponding change in mechanical hardness (red cross). The error interval denotes the standard deviation calculated from measurements performed at least in triplicate. b Film formation time (the time at which the paint has reached its maximum weight change) vs. egg yolk content for PCP-type paints; error bars represent the interval between the start and the maximum of the weight increase. c, d Mass increase, normalized to the oil content, of UB (blue) or LW (black) paint samples prepared as oil paints (triangle), capillary suspension CapS (circle) or PCP (square) paints as a function of time. c UB CapS and PCP paints contain 1 and 2 vol% of EY solids. d LW CapS and PCP paints contain 4 vol% of EY solids. All studied paints contained a solids fraction (pigment and EY solids) of φ = 32 vol%.
