The pycnometer or densimeter is a tool used to measure the density of liquids such as slips, glazes and engobes. This measurement is crucial to ensure that these materials have the right consistency for their application. Correct density ensures that the slip flows evenly during casting in molds and that the glazes adhere properly to the pieces without running off or forming uneven layers.
The pycnometer measures density by comparing the mass of a known volume of liquid to the mass of the same volume of water. This process allows the proportions of water, clay and other components to be adjusted to obtain consistent results. Density meters are especially useful in industrial production and in workshops working with precise formulas.
Interesting Fact
Although the pycnometer is a modern tool in ceramics, its principle has historical antecedents in ancient chemistry, where similar methods were used to measure the density of liquids in alchemy and the preparation of dyes for textiles.
Helpful Tip
Clean the pycnometer carefully after each use to avoid contamination between tests. Be sure to work in a level place to obtain accurate measurements and keep a detailed record of the results, relating them to the behavior of the pieces during firing.
