ABSTRACT
ABSTRACT: The physicochemical properties of artworks of the Cultural Heritage are modified by degradative environmental agents and biodeterioration. In many cases, the most effective intervention is the replacement of the work of art by a copy, and, often the preventive conservation solution considers the moulding of the original and its reproduction by restoration mortars. In this regard, the analysis and optimization of various reagents substances used in a bilayer system during the moulding process on two different types of stone have been studied: one macro porous travertine and a micro porous biocalcarenite. This novel, innocuous system is based on the superposition of several layers, one directly on the stone with a nonpolar character the alkane hydrocarbon cyclododecane and another, polar, above it (funori or latex). All specimens were tested after accelerated aging by UV light and colour changes have been controlled by spectrophotometry and light microscopy (LM).
