Múzeumi műtárgyvédelem 2., 1975 (Múzeumi Restaurátor És Módszertani Központ)

Szalay Zoltán: A régészeti eredetű fémtárgyak restaurálása

Zoltán Szalay

RESTORING OF METAL OBJECTS OF ARCHAEOLOGICAL

ORIGIN

Summary

Restoring of metal objects consists partly of planishing and partly of completion. Planishing can be carried out only with objects of which the surface is perfectly clean. The applied tool is made of wood, with finer works the surface of tool is covered by leather. The soldering of broken metal objects must be avoided. For the cementing mainly epoxy resins are used, with finer, thinner objects also cyanoacrylic resins (e.g. Eastman 910 or I.S.-12 cyanoacrylic adhesive). The completion can be effected by electroplating processes, but generally the completion by means of plastics is more effective. The coating material is poly-buthyl- metacrylate or polyamylmethacrylate. Epoxy resins can be used only after the completion. As a negative material for the completion generally a smearable silicone rubber is used. The materials of completion are epoxy or methacrylic based casting resins. Among the epoxy resins the Araldit products as well as the home produced Epamin III, Eporesit and Resopol are used. The methacrylic based completion materials used are the Kallocryl CP , manufactured in the DDR and CzechosloO

vakian product, the Duracrol. Both are well colorable and their strengths can be increased by the addition of fibreglass choppings. If neither of these materials is available, suitable home-made materials can be used as weil.

The aLithor describes the restoring of a bronze vessel. The textile sticked on the wall of the vessel- 72 -