Abstract
This summary refers to the presentation given on the occasion of the I AESCROM Conference, in March 2010, on the research carried out for the DEA project Evaluation of Agar as a Cleaning Method on Plaster, of the doctorate program of the department of painting / restoration of the Faculty of Fine Arts of the Complutense University of Madrid. In turn, the project takes as its starting point the work carried out by Dr. Cremonesi and his team.