Fig. 5: Crack patterns captured by digital portable microscopy.
From: Early degradation mechanisms at the interface between acrylic grounds and oil paint films
a A detailed view of the sample SET3-TiGD-T; b a closer examination of sample SET3-TiGD-T, revealing cracks on the surfaces; c a detailed view of the sample SET3- ZnMM-T; d higher magnification of sample SET3- ZnMM-T reveals deeper cracks with oil medium separation. TiGD titanium dioxide in rutile form from the brand Golden, ZnMM zinc oxide from the brand Maimeri, T subjected to artificial ageing with temperature variations.
