Fig. 4
From: Investigating the effect of artists’ paint formulation on degradation rates of TiO2-based oil paints
a Contour plot for the state of chalking at the end of the full aging procedure (around 10.000 J/cm2) in relation to the formulations of Experiment II. b 3D projection of figure a showing the completely flat CR(Inorg) corner. All numbers represent volume fractions. The analysis was performed applying a logit transformation, forcing the response to stay between 0 and 1