Ageing damage: protection and restoration
Gilding: manufacturing and processes
Article REF: N4900 V1
Ageing damage: protection and restoration
Gilding: manufacturing and processes

Authors : Evelyne DARQUE-CERETTI,, Marc AUCOUTURIER, Eric FELDER

Publication date: June 10, 2015, Review date: March 23, 2020 | Lire en français

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5. Ageing damage: protection and restoration

If the pure gold coating is continuous and adheres well to the substrate, it should act as protection against corrosion or substrate degradation. In fact, this is rarely the case, since on the one hand, the gilding alloy is not always pure gold, and on the other, the adhesive and substrate may degrade despite this protection.

5.1 Degradation of the golden layer

Corrosion studies on homogeneous alloys (Au-Cu and Au-Ag) ...

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