ABSTRACT
ABSTRACT: Archaeological metal objects usually have a complicated state of conservation, characterized by the corrosion process that depends on the piece’s nature, its technology and the burial context. In order to recover as much original patina as possible, usually hidden under a dense corrosion layer or even transformed into a layer of diverse nature, the restoration process requires an adjusted methodology, and the use of different tools and techniques. In this work we’ll expose our good outcomes in metal cleaning with laser technology describing its efficiency in the treatment of four archaeological pieces of iron and copper with very specific problems, that couldn’t be cleaned with traditional devices, such as ultrasonic piezoelectric spatula, micromotor and microsandblaster, scalpel, bamboo stick and brushes.
