Painting medium - Encaustic
1. Application of a mixture of hot beeswax, resin, and ground pigment to an absorbent or porous surface, followed by the application of heat to set the colors and bind them to the ground
2. Polishing with a cloth after the surface cools to give the wax a soft luster that heightens its translucent quality
3. Used by Egyptians, Greeks, and Romans to paint portraits on coffins