Methodology of restoration works of polychrome wall paintings T1-20 and T1-21
1. A detailed photo fixation is performed before starting the work.
2. Identification of the materials used for the dyeing and selection of the original compatible analogues by performing test areas in a neutral place where the color will not be exposed.
3. Gentle cleansing of the finish from repainting, non-original filler layers and dirt, using surgical scalpels, fiberglass pencils, Wallmaster sponges, raw rubber plates.
4. Reinforcing the surface of the fragment with solvent-free, primer-free, deep-acting primer Histolith Spezialgrundierung. The primer is designed to fix historical adhesive chalk and oil paintings, as well as to fix fragile plaster. The primer does not affect the tonality of the basic paint and does not yellow.
5. Correction of plaster loss with lime-based java Caparol Mitau Putz, fine-grained lime based filler Histolith Kalkspachtel Briliant. After drying, the edges were ground with cork. The repaired areas are fixed locally with the silicate primer Histolith Silikat Fixativ.
6. Tinting of plastered and crushed areas in the original basic tone using natural pigments. T.1-20 Fragment No.2 '' Mendeleev Table '' corrections are tinted in the base plaster and wall masonry.
7. Tinting, reconstruction, retouch with colour similar to original with Histolith Emulsionfarbe (Reversible interior paint with casein / tempera character). Painting in the original order of the color scheme. Restoration is done to maximize the look of the fragments to their original appearance. T.1-20 Fragment No.2 '' Mendeleev table '' is locked in an existing, obsolete state without any additions to color loss
8. Application of the fixation layer. 5% PVA adhesive is applied for surface protection and gloss leveling.