Wollastonite is a mineral used in ceramics to improve the thermal resistance of clay bodys and glazes. It helps reduce shrinkage and prevents cracking during drying and firing. It also acts as a defatting agent, making it a key ingredient in the manufacture of high-temperature ceramics such as stoneware and porcelain.
Wollastonite is highly valued for its ability to improve the dimensional stability of ceramic pieces, which means that the pieces shrink less during firing, essential for technical pieces that must have precise measurements. It also improves the thermal resistance of parts that will be subjected to extreme temperature fluctuations, such as in industrial applications.
Interesting Fact
The porosity of gypsum and plaster makes them essential tools for mass production, as they allow the production of multiple identical parts. However,
Helpful Tip
It is important to make sure the molds are completely dry before pouring the slip, as moisture in the mold can affect the consistency of the piece, causing warping or uneven drying. Also, clean your work area well, as any plaster residue on the clay can cause explosions in the kiln due to its rapid expansion to heat.
