Matte (Glaze)
In ceramics, the term matte refers to a surface finish that lacks luster, resulting in a smoother, subtler and more organic appearance than glossy glazes. This type of finish is achieved by modifying the glaze formula by incorporating components such as zinc oxides, titanium oxides, silica or other materials that scatter light differently. By interrupting the formation of a completely smooth glassy surface, a diffuse effect on light reflection is produced, creating a matte appearance.
Some matte effects are obtained not only by adjusting the chemical composition of the glaze, but also by controlling the atmosphere and cooling of the kiln. Slow cooling can allow microcrystals to form on the surface, scattering the light and giving the glaze a matte appearance.
Matte glazes tend to better highlight the textures, incisions and reliefs present on the surface of the piece, as the light does not reflect evenly and instead emphasizes the modeling of the clay. However, these glazes require a careful balance in their formulation and firing conditions; small variations in temperature, atmosphere, or proportions of oxides can produce noticeable changes in the final surface, from a silky matte to a rougher one.Interesting Fact
Matte glazes have a long history, visible as early as the Korean vessels of the Goryeo dynasty (918-1392), where the simplicity of their opaque finishes was valued. Over time, different cultures have taken advantage of their low gloss appearance for their tactile effect and their ability to highlight the shape of the pieces.Helpful Tip
If you want to obtain a consistent matte finish, test with small samples and carefully record the firing conditions. Adjust the amount of oxides, the temperature range and the firing curve. Keep in mind that the uniformity of the glaze thickness and the homogeneity of the mixture also influence the final result.
