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Ceramic Surface Treatments
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Flashcards
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Salt Glazing
Application involves throwing salt into a high-temperature kiln. Expected results are a glassy, textured surface created by the reaction of salt with the clay body.
Glazing
Application techniques include dipping, spraying, or brushing. Expected results are a glossy or matte finish that often adds color and is waterproof.
Slip Trailing
Application techniques involve squeezing slip through a nozzle to create raised patterns. Expected results are textured decorative designs.
Lustre
Application involves painting on a metallic solution and firing in reduction. Expected results are a metallic sheen surface finish.
Sgraffito
Application involves scratching through a layer of colored slip to reveal the clay body beneath. Expected results are contrasting two-tone patterns or images.
Raku Firing
Techniques include placing red hot ceramics into organic materials and then into water. Expected results are unpredictable textures and colors due to rapid cooling and reduction.
Engobe
Application techniques include brushing, trailing, and dipping. Expected results are a surface coating that provides color and texture before the final glazing.
Underglaze
Application techniques include painting or pouring on bisque ware. Expected results are decorative patterns or pictures covered with a clear glaze.
Decals
Application involves transferring pre-printed designs onto the ceramic surface using water or heat. Expected results are detailed commercial or handmade imagery on the ware.
Terra Sigillata
Application techniques include brushing multiple thin layers onto bone-dry or bisque-fired ware. Expected results are a soft sheen without glaze, highlighting subtle details.
Combining
Application includes attaching different clay bodies or elements together. Expected results are a piece with varied texture, color, and form.
Stenciling
Application involves using cut-outs or resist materials to apply patterns. Expected results are clean-edged designs on the ceramic surface.
Oxide Wash
Application consists of painting oxides onto the clay body and wiping back to accentuate texture. Expected results are earthy tones and highlighted textures.
Impressing
Technique includes pressing objects into clay to create relief patterns. Expected results are imprints that can be functional or decorative.
Mishima
Application includes inlaying slip or clay into incised lines and then scraping back the surface. Expected results are smooth surfaces with fine, detailed lines.
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