Contour paint has a high pigment content and becomes quite matte after burning. Contour paint has excellent coverage.
Burn at 580 - 620 °Celcius (1076 - 1148° F), in approx. 45 minutes.

With traditional canvas painting, firing is usually done three times:
1. Setting up the contour lines
2. Applying grisaille, dry tamponing for shadow areas
3.  Coloring it with transparent glass paint