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Heritage Science
Fig. 13 | Heritage Science

Fig. 13

From: Evaluation of polyvinyl alcohol–borax/agarose (PVA–B/AG) blend hydrogels for removal of deteriorated consolidants from ancient Egyptian wall paintings

Fig. 13

a Wall painting showing Pharao Seti I presenting incense before the god Wepwawet. The chosen area for the test, before hydrogel application, is indicated by the blue rectangular. This scene is located in the chapel of Osiris, east wall, north side. b The PVA–B/AG blend hydrogel, loaded with CS3, during application on two different areas and covered with plastic sheets. c, d The treated areas, under raking light, after the removal of the consolidant layer (contact times are 3 h and 1 h respectively). The glossy effect of the consolidant disappeared and that the matte appearance of the surface was restored (areas within the black line). The paint layer was not damaged during the removal and all visible scratches are part of the original state of the wall painting

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