Keli tapybos ant metalo konservavimo pavyzdžiai

ENThis paper presents the historical development of the technology of painting on a metal base and describes common drawbacks, materials and methods of conservation, restoration and storage of painted metal objects. The paper reviews conservation and restoration of four pictures and two epitaphs. All the pictures had been oil painted on different metal bases - iron, copper, brass and bronze. Bases of the epitaphs had been made from iron covered with zinc with small remaining fragments of oil painting and lettering. The rust from the surface was softened with sorbitol and methyl cellulose and removed mechanically. Corroded iron was inhibited by tannin, and corrosion products of copper alloys were removed mechanically. The painting layer of all the pictures was consolidated with Paraloid B-72; missing areas were filled in with oil prime and retouched. The pictures were additionally covered with Paraloid B-72 and Dammar varnish. After the removal of rust, surface inhibition and straightening of deformations, the epitaphs were covered with polyethylene wax PEW-200 on both sides.