Methodology for the Correct Reproduction of Megalithic Paintings: Substrates and Binders (original) (raw)

Rock art researchers describe the existence of a preparation layer of kaolin (with or without organic binder) on the rock, on which megalithic painting was carried out, using a mixture of pigment and binder. The natural pigments used were mainly hematite, ochre and carbon black. As binders, animal fats, blood, resins, etc. were reported. The uncertainty regarding the composition of these paintings means that there is not a clear procedure for their reproduction in the laboratory as mock-ups. This study shows a methodology based on the assessment of a group of parameters that allow assessing the suitability of a binder (in this case, butter or casein) both in the preparation layer and in the pictorial layer. Covering capacity, drying velocity, binding capacity, grip on the substrate and biological growth were evaluated. It was completed with colour spectrophotometry and scanning electron microscopy. The mixture of butter with pigment applied on a kaolin-based substrate was identified as the most suitable.

Sign up for access to the world's latest research.

checkGet notified about relevant papers

checkSave papers to use in your research

checkJoin the discussion with peers

checkTrack your impact