A white glaze background will be spread
on the surface of the object to render it impermeable and
make it possible to decorate. The glazing can be followed
through with a paintbrush, sprayed, or following an antique
technique, for immersion; this consists of immerging objects
in a tub of white paint.
Seems simple, but this operation requires
great ability by the potter, especially in depositing the
right harmonious quantity of Glaze onto the entire surface.
To avoid inaccuracy reoccurring in the design, often an antique
technique of dusting is used. Using a piece of translucent
paper pierced with a needle along its edges, it multiplies
what is on the surface of the vase, and then is beaten with
a wad of fabric containing coal powder. Thus, falling through
the holes in the paper, it deposits on the surface, outlining
the edges of the design to which colors are applicated.

The traces of carbon powder left is revised
by the painter with a brush, and therefore is always applied
with a paint brush. Colors are applied to complete the design.
The special colors of ceramic are obtained with diverse metallic
oxides, earth, and minerals. A green shade is produced with
the oxide of copper, yellow with oxides of iron, while the
oxide of cobalt produces blues and the oxide of manganese
produces browns. The colors and enamels must be firing to
obtain consistence and brilliance therefore, the vases are
firing again for a second time, according to “its beauty”
around 920-940°C.