ceramic lustres for porcelain

SMOKY BROWN - Precious metal Ceramics Luster Lustre for overglaze application

Smoky Brown luster for overglaze application in ceramics refers to a specific type of luster finish that imparts a metallic, smoky brown sheen to the surface of glazed ceramics. This effect is achieved through the application of a luster overglaze containing metallic compounds, which is then subjected to a specific firing process. The unique appearance of smoky brown luster is the result of the metallic compounds reacting under the heat of firing, forming a thin metallic film on the surface of the ceramic piece.

Composition

The smoky brown luster typically involves the use of compounds of metals such as silver, copper, and sometimes manganese. These metals, when mixed in certain proportions and applied to a ceramic surface, can produce a range of brown tones—from light, subtle browns to deep, rich smoky hues. The exact composition and proportions of the luster mixture can significantly affect the final appearance of the luster, including its color, sheen, and texture.

Application Process

Preparation: The ceramic piece should already be glazed and fired. The surface must be clean and free of any contaminants to ensure the luster adheres properly.
Luster Application: The smoky brown luster mixture is applied to the surface of the glazed ceramic piece. This can be done using various methods, such as brushing, dipping, or spraying, depending on the desired effect and the specifics of the luster solution.
Firing: After application, the piece is fired again at a lower temperature than that used for the initial glaze firing—typically between 650°C and 750°C (1112°F to 1472°F). This firing process is crucial for the development of the luster, as it causes the metallic compounds to form a thin, reflective film on the surface.
Cooling: The piece must cool slowly after firing to prevent thermal shock, which could crack the glaze or the ceramic body.

Considerations

Skill Level: Applying luster requires skill and experience, as the outcome can be significantly affected by the application technique and firing conditions.
Cost: Materials used for luster, especially those containing precious metals, can be costly. Smoky brown luster does not typically use the most expensive metals (like gold or platinum), but the costs can still add up due to the complexity of the process.
Safety: Some metallic compounds used in lusters can be toxic, so proper safety precautions are necessary during preparation, application, and firing.
Smoky brown luster adds a unique and luxurious finish to ceramic pieces, making it a popular choice for decorative objects, art pieces, and high-end pottery. The depth and richness of the smoky brown color can add a sophisticated touch to the ceramic surface, enhancing its aesthetic appeal and value.

Quantity: 10 g. (0,35 oz.)
Firing temperature: 650°C - 750°C (1200°F - 1400°F) (Cone 018) 

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SMOKY BROWN - Precious metal Ceramics Luster Lustre for overglaze application

  • Brand: Heraeus
  • Availability: 456
  • 14.99€


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