When a Conservator-Restorer works on archaeological objects, the biggest battle is against degradation, which can accelerate when teams begin to exhume objects in archaeological excavations.
Metals are particularly sensitive to the change of environment, due to corrosion beginning again. Stabilisation treatments, which are carried out as soon as possible following an object's discovery, make it possible to limit this deterioration. This step ensures long-term preservation, which allows these objects to be typologically and technically studied. It is then possible to present a restoration to the public.