Molding clays
Molding clays are clay mixtures specifically formulated for use in casting or pressing techniques in molds. These clays are characterized by their lower viscosity compared to those used for hand modeling or throwing, which allows them to flow easily into plaster or silicone molds and reproduce fine details with high precision. The composition of these clays usually includes a balanced proportion of clay, water and deflocculant additives that optimize their fluidity without compromising structural integrity during firing.
In addition, molding clays are designed to dry quickly without deformation, making them ideal for mass production of complex and repetitive ceramic shapes. Rapid drying minimizes the risk of cracking and allows for an efficient transition to the firing phase, maintaining the fidelity of the details replicated in the molds.
These clays can be adapted for different types of ceramics, from earthenware to fine porcelain, adjusting the formulation according to the specific needs of each project. For example, for high-temperature ceramics such as porcelain, elements can be added to increase thermal resistance and translucency, while for low-temperature ceramics such as earthenware, plasticity and water-holding capacity are optimized.Interesting Fact
Molding clays are not only fundamental in the traditional production of utilitarian and decorative ceramics, but also play a crucial role in advanced and functional ceramics used in high-tech industries. For example, these clays enable the creation of ceramic components for electronic devices, medical implants and aerospace components.Helpful Tip
When using casting clays, be sure to stir the slip well to prevent solids from settling to the bottom and to obtain a homogeneous consistency during pouring into the molds. Use fine sieves to filter out impurities and ensure that the clay flows evenly, resulting in pieces with sharp details and a smooth surface.
