Pure gold or alloys, especially alloys with silver, are among the most ancient of worked metals.Variations in the percentages of gold and silver and the addition of small amounts of other metals allows one to obtain leaves with a range of colours and differing characteristics.
Alloys with a high percentage gold content are not affected by air or most chemicals, so the leaves thus obtained are particularly suitable for applications that are in contact with the external environment or a particularly hostile one, like the sea.
The high ductility and malleability of these materials allows the production of leaves 0.1 µ thick
Numerous techniques are used for applying leaves, the most ancient of which is called "gouache", whilst the latest use water for adhesion ("water" missions) and adhesion referred to as 'grease' (or "fat missions").
We recommend storing the products in a dry environment: humidity, in fact, does not have much of an effect on the leaves but rather on the paper separating them.
Expansion of the paper due to moisture absorption can cause the leaf to break, as it is not subject to this expansion, but suffers damage by being stuck to the paper.
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