Boric acid is a key component in the formulation of ceramic glazes, where it acts as a flux, helping to reduce the melting point and facilitating surface vitrification. This compound is especially valued in low-temperature glazes, as it allows glossy and glazed finishes to be achieved without requiring high-temperature firings, which is ideal for utilitarian and decorative ceramics.
In addition to improving melting and gloss, boric acid contributes to glaze stability, reducing problems such as crazing/cracking or bubbling during firing. It is also known to enhance the intensity of colors, especially in transparent and glossy shades, due to its ability to create a clear and luminous vitreous layer on the surface.
Interesting Fact
Boric acid is not only used in ceramics, but also in household products such as insecticides and wood preservatives. In ceramics, its ability to facilitate glaze melting at low temperatures makes it an essential component in certain glaze formulations.
Helpful Tip
When working with boric acid, be sure to measure accurately, as too much can cause the glaze to run or become too shiny. Keep the concentration at the right level to avoid deformations on the surface of the piece.
