Within the proiect “Innovative Techniques in Cultural Heritage Valorisation. The Icons on Sebeș Valley in the Transylvanian Museum of Ethnography collection”, the restoration activity carried out by the experts was an extremely complex one.
In the patrimony of the Transylvanian Museum of Ethnography there are icons painted on manufactured glass, and fragments of support glass are missing. The fillings can be made by cutting in the shape of a bottle of the same thickness and transparency as the original one (we will avoid the green glass, for example) or with two-component epoxy resin H xtal NYL-1. The glass fragments can be chromatically integrated.
The glass is cut with a cutter (Tiffany is the best for us), the edge of the glass is sanded with abrasive paper of different granules, degreased with alcohol. The fragment is bonded with two-component epoxy resin H xtal NYL-1.
If we fill it with resin, the painted layer will be strengthened, the non-stick, sticky, dirty deposits will be removed, the edges of the glass will be degreased, all the original fragments will be glued at the same time. The missing places will be isolated, creating a “formwork”. We will cut on the shape of the gap, but slightly exceeding its edges (by one mm), a foil of melinex, which we transpose on scotch tape, covering the area of the missing fragment. Of course, the adhesive tape will stick to the unpainted side of the bottle. In the “formwork” we pour the two-component mixture, weighed, in a ratio of 1: 3.
The project is financed by the EEA Grants 2014-2021, within the RO-CULTURE Program, a project realized by the Ethnographic Museum of Transylvania in cooperation with the Technical University of Cluj-Napoca and the Norwegian Association NUDA AS.
Before adding the missing fragments of glass 
Cutting the glass 
After adding and integrating the glass 
Before interventions 
Formwork for pouring 
Pouring the resin 
Polishing 
After adding the missing glass
