Rubber bulb

Rubber bulb

The rubber bulb is a tool used mainly for the precise application of liquids such as engobes, slip, glazes and decorative oxides. It consists of a flexible container, usually made of rubber or plastic, with a nozzle to control the amount of liquid dispensed. The rubber bulb is ideal for creating patterns, lines, dots and other fine details on the surface of the pieces. It can be used directly on raw, bisque or even glazed parts, depending on the desired effect. In addition, rubber bulb is widely used in techniques such as cuerda seca, where precise control is crucial for outlining contours before applying the glaze. Another decorative use of rubber bulb is the layering of glazes or engobes in thin layers, allowing variations in color and texture to be explored. For example, it can be used to apply drops or lines that expand and blend during firing, creating unique visual effects.

Interesting Fact

The rubber bulb is not only used in artistic ceramics, but also in the restoration of antique pieces, where it allows the application of adhesive liquids or pigments with precision on small and delicate areas without damaging the original surface. This makes it a versatile tool for both creating and preserving ceramic works.

Helpful Tip

To avoid clogging, make sure that the liquids used are well sieved before filling the bulb. Clean the nozzle after each use to maintain a constant and accurate flow. Experiment with different nozzle sizes to achieve a variety of line thicknesses and decorative details.