Fig. 15: High-resolution field emission scanning electron microscopy (HR-FESEM) images of cracks pattern observed on mock-up SET3-ZnMM-T.
From: Early degradation mechanisms at the interface between acrylic grounds and oil paint films
a Close-up of a crack with the start and end points marked with red crosses; b 20 µm magnification of the interface between the oil paint film and the acrylic gesso ground; c 20 µm magnification of the interface between the acrylic gesso ground and the acrylic primer. SET3: (consisting of pre-primed canvas, acrylic primer, acrylic ground gypsum, paint layer). Ti titanium paint layer, GD brand Golden Artist Color Inc., T subjected to artificial ageing with temperature variations.
