Conservation image Gels Cleaning Research (1998–2003)
A project of the Getty Conservation Institute
 

In a cleaning experiment similar to that carried out on the painting sections, gel is applied to sections of four materials commonly found in three-dimensional objects in museum collections-plaster, marble, terracotta and gilded wood. Samples of these materials are scintillation counted in a manner similar to the painting samples. Photo: Dusan Stulik.