Mark Leonard, Jill Whitten, Robert Gamblin and E. René de la Rie Abstract As a natural outgrowth of research on synthetic low molecular weight resins for picture varnishes, a new retouching paint was developed in a collaborative effort involving conservators, conservation scientists and an artists’ materials manufacturer. A urea-aldehyde resin produced by BASF was chosen … Continue reading Development of a New Material for Retouching