Originally Posted by laika
Russians have soul. Every trained traditional icon writer that I've met is Russian.
The main composition of the yolk egg tempera: 1 part yolk, 2 parts dry white wine. Wine can be replaced with light beer, but the emulsion will be more voluminous.
preservative - 1-2 drops of clove essential oil,
oil - polymerized linseed oil from 1 to 3 drops (depending on the writing technique).
Despite the presence of preservatives, it is better to store the finished emulsion in a cool place.