Low temperature firing is the firing process that occurs below 1200°C, being common in the production of earthenware and certain types of decorative ceramics. This firing method is used to create pieces that do not require the same resistance and impermeability as high-temperature glazed ceramics, allowing for greater porosity and a more rustic and natural texture.
Low-temperature fired pieces are more porous and less resistant than high-temperature fired pieces, making them more suitable for decorative applications or pieces that will not be exposed to intensive use. However, this porosity also allows for greater absorption of water and other liquids, so it is common to apply glazes or engobes to waterproof the pieces when they are used to contain liquids. Low temperature glazes can offer a wider range of bright colors and decorative effects that are not achieved in high temperature firings, allowing for greater aesthetic diversity in the final pieces.
Interesting Fact
Companies such as Wedgwood and Royal Doulton took advantage of slip casting to establish quality and reproducibility standards in the ceramic industry, consolidating their presence in the global market and democratizing access to high quality decorative and utilitarian ceramics.
Helpful Tip
Keep the slip in a fluid and homogeneous state, stirring the mixture regularly to prevent clay particles from settling to the bottom of the vessel. Use fine sieves to filter out impurities and ensure uniform suspension of solids, which will result in pieces with sharp details and a smooth surface.
