Kinetic evaluation of thermogravimetry data is a simple tool routinely used in the industry to predict materials’ performance and longevity. Its potential in the field of conservation science was tested through application to the understanding of the ageing behavior of beeswax used as a paint medium on ancient mummy shrouds and Fayum portraits. Individual components of beeswax were subjected to dynamic thermogravimetry, and two methods of kinetic analysis based on n_th-order models were employed to assess their evaporation rates. The composition of thermally-aged beeswax, determined by GC/MS analysis, was compared with kinetic predictions as well as to a naturally-aged sample. The results showed that although it is impossible to accurately predict the volatility at room temperature for individual components of beeswax due to their high molecular weight, relative trends and ranking of the volatility of the compounds can be obtained which help explain and predict qualitative compositional changes over time.