Canadian Heritage
Symbol of the Government of Canada
Home > Headlines Archive > Descente de croix > Conservation Issues

Treatment of a 16th-century Spanish Panel Painting

Conservation issues

The panel was in poor condition — the most urgent problem was the extensive delamination or lifting between the paint/ground layers and the underlying wood. Differences in movement of these layers, provoked by changes in humidity, resulted in this damage. The delamination of decorative layers was most pronounced above or near joins between planks.

Figure 1

 

Figure 2


Figure 1

The old putty pushed into gaps between planks had largely shrunk and cracked causing the paint and ground layers above the putty to crack and, in many places, to fall away. Several previous campaigns of restoration had replaced the missing ground and paint. These repairs are detectable under ultraviolet light. Much of the background was overpainted in order to disguise large losses along plank joins.

Figure 1

 

Figure 2


More details on: