Fig. 3: Wet paint yield stress and brushstroke profile.
From: A holistic view on the role of egg yolk in Old Masters’ oil paints
Ultramarine paints, relationship between a yield stress σy, b roughness Rz and profile of the paint brushstrokes, and c appearance of the paint layer. The paints were prepared at a solid fraction of φ = 32 vol%, including 2 vol% of egg yolk solids for the paints containing proteins. The error interval denotes the standard deviation calculated from measurements performed at least in triplicate. PCP stands for protein-coated pigment paint and CapS for capillary suspension paint.
