conservators cleaning Israelites Oppressed

Sensitive paint (continued)

To protect the sensitive paint, conservators cleaned these fragile areas less completely than the more stable passages. They also conducted the cleaning in stages, removing a portion of the grime and then allowing the paint surface to dry completely, often for 24 hours. After the paint had “rested,” they reapplied the cleaning solution.
Gianfranco Pocobene, Ruxandra Stoicescu and Kate Smith Maurer cleaning Israelites Oppressed (2003 photo)
The Triumph of Religion