Opaque (Glaze)
An opaque glaze is one that, thanks to the addition of opacifiers, does not allow to see through its surface, thus hiding the clay underneath. Unlike transparent or semi-opaque glazes, these generate a uniform and solid chromatic coverage, highlighting the colors of the glaze and preventing the tonal variations of the clay body from affecting the final result.
Historically, the development of opaque glazes, particularly white glazes, was motivated by the desire to imitate the aesthetics of Asian porcelain, famous for its purity and luminosity. Islamic and European Renaissance cultures found in opaque glazes an ideal base for applying polychromatic decorations, intensifying contrast and enhancing hand-painted details. Today, opaque glazes are used both in industrial production and in artisan workshops, as they are useful to uniform the finish, hide imperfections in the clay and simplify the application of decorations.Interesting Fact
The ability to obtain an opaque glaze allowed local ceramic productions to compete aesthetically with imported porcelain and to gain creative autonomy, developing their own styles. In this way, the opacity of the glaze boosted the diversification of ceramic traditions.Helpful Tip
To achieve quality opaque glazes, be sure to mix the ingredients thoroughly and apply the coating at a uniform thickness. An uneven application or poor mixing may result in more transparent areas or inconsistencies in opacity, affecting the final finish.
