A conference discussion session. Discusses work on amines and iron stabilisation which indicates that amines are retained within the corrosion product layer. The effect of the amines, such as ethylenediamine and triethanolamine, seems to render the materials tested (goethite, haematite, magnetite) hydrophobic by its presence in the corrosion layer. This means that an artifact treated in this manner can be exposed to fluctuating relative humidities. Table.