Evaluating Thermal and UV Stability of Some Protective Coatings for Historical Murals in Egypt

Abstract

• Evaluating the stability of some acrylic-based polymers (Paraloid B72, Lascaux® Hydroground 750, and Pébéo Satin Matt Picture Varnish). • Thermal and UV accelerated ageing were performed on laboratory model samples according to literature data . • The evaluation process was performed using optical microscopy, colorimetry, scanning electron microscopy, and FTIR spectroscopy . • Among the tested products, the Matt picture varnish (based on acrylic resin and polyethylene wax) showed the best durability against ageing procedures.