Fine art Finishes for Egg Tempera
http://sanmiguelicons.com/ Mary Jane Miller has an tip for those studying iconography.
Egg tempera Finishes for your icon, Tip for the beginner.
Oiling an icon is the best!!, waxing it with premium quality bees wax may be the second best way and definitely easier, fro fine art finishes, but here is a technique we can all do and it will help the life of your icon painting with no cost.