Fig. 2
From: Early degradation mechanisms at the interface between acrylic grounds and oil paint films
Selected results of multiband imaging carried out in SET3 (commercial primed cotton canvas + acrylic primer + acrylic gesso ground + oil paint film). The images report only the central area of the canvas and exclude the area in contact with the wooden stretcher. T: subjected to artificial ageing with a variation of temperature. RH%: subjected to artificial ageing with fluctuation of % relative humidity (RH%). NAT: subjected to natural ageing at room temperature.
