Tempera on linen board. Sealed with Krylon Archival Satin Varnish. No need to be framed under glass. Framed as a floating artwork, real wood frame. Ready for the wall. Tempera is one of the oldest painting mediums. It is a permanent, fast-drying painting medium consisting of pigments mixed with a water-soluble binder medium, typically egg yolk. The method was used in Europe for fine painting, mainly on wood panels, from the 12th or early 13th century until the 15th, when it began to give way to oils.