Magnesium sulfate (MgSO₄), also known as Epsom salt, is a multifunctional compound in ceramics that is mainly used as a modifier in slip, glazes and engobes. In slip, magnesium sulfate acts as a flocculant, helping to control the fluidity of mixtures and reducing the formation of sediment. This improves the uniformity and workability of the mixture, allowing a more precise and efficient application.
In glazes, magnesium sulfate can influence the surface texture, generating matte or satin finishes depending on its concentration and the combination with other materials. It is also used in experimental decorative techniques, where its reaction with other ceramic components can produce interesting visual effects.
Interesting Fact
In addition to its use in ceramics, magnesium sulfate is known for its therapeutic properties, being widely used in relaxing baths to relieve muscular stress.
Helpful Tip
When using magnesium sulfate in slip, add it gradually while mixing to adjust to the desired consistency. Pretest glazes to explore its effects on texture and finish. Always store it in a dry place, as it is highly soluble and can easily absorb moisture.
