Name: Sio2 PRNI Black Stoneware Clay
Brand: Sio-2
Rating: 4.7 (12 reviews)

Sio-2 PRNI is a black stoneware clay body with a 40% grog that is so fine it's unable to be felt. Formulated for artistic ceramics, this clay is ideal for wheel-throwing and modeling smooth pieces with fine details. 

PRNI's beautiful and intense black firing color in oxidizing atmospheres is unique to the PRN range. In reducing atmosphere, metallic effects with shades of blue can be obtained. 

Sio-2 PRNI Black Stoneware Clay is food-safe and suitable for tableware, according to ISO 6486:1999. It has a firing range of Cone 5–6 (2205&deg;F–2269&deg;F). 

27.6 lb package.




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Sio-2 PRNI Black Stoneware Clay - fired to Cone 03, Cone 5, and cone 6

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Sio-2 PRNI Black Stoneware Clay - Top view of Package of wet clay

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Stack of finished dishware made with Sio-2 PRNI Black Stoneware Clay

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Sio-2 PRNI Black Stoneware Clay - Bowl shown with Mayco Stoneware Glaze Ant. Brass (Sold Separately)

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Sio-2 PRNI Black Stoneware Clay - Plate shown with Mayco Stoneware Glaze Ant. Brass Sold Separately

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Sio-2 PRNI Black Stoneware Clay - Plate shown with Blick Essentials Glaze, Candy Apple (Sold Separately)

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Sio-2 PRNI Black Stoneware Clay - Plate Shown with Blick Essentials Glaze, Jade (Sold Separately)

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Sio-2 PRNI Black Stoneware Clay - Bowl shown with Blick Essentials Glaze, Jade (Sold Separately)

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Sio-2 PRNI Black Stoneware Clay - Bowl shown with Mayco Stoneware Glaze, Oxblood (Sold Separately)

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Sio-2 PRNI Black Stoneware Clay - Plate Shown with Mayco Stoneware Glaze, Oxblood (Sold Separately)

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Sio-2 PRAI White Stoneware Clay (fired to Cone 03, 5, and 10)

Sio-2 PRAI is a white stoneware clay body with a 40% grog that is so fine it's unable to be felt. Formulated for artistic ceramics, PRAI is ideal for wheel-throwing and modeling smooth pieces with fine details. 

PRAI's ivory color after firing makes it an excellent ware for glazes and coloring oxides, which develop bright and intense tones. It has a firing range of Cone 6–10 (2269&deg;F–2381&deg;F). 

Sio-2 PRAI is available in moist form in a 27.6 lb package.

PRAI is a white stoneware clay body with a 40% grog that is so fine it's unable to be felt. Formulated for artistic ceramics, PRAI is ideal for wheel-throwing and modeling smooth pieces with fine details. Its ivory color after firing makes it great for glazes and coloring oxides. 27.6 lb package.

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Sio-2 Black Ice Porcelain Clay fired to Cone 5, Cone 6, and Cone 8

Black Ice Porcelain Clay is a black porcelain body which fires to a beautiful black graphite color. Ideal for wheel-throwing and modeling, it features high plasticity. A stable formula provides a secure firing range between Cone 6 and Cone 7 (oxidizing atmosphere). It is food safe and suitable for tableware. 

Available in an extruded body (moist form), it comes wrapped in film inside a carton box in a convenient 11 lb cylindrical format.

Black Ice Porcelain Clay is ideal for wheel-throwing and modeling. it features high plasticity and a stable formula for a secure firing range between Cone 6 and Cone 7 (oxidizing atmosphere). Food safe once fired.

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Amaco Potter's Choice Glazes - Five tier pyramid of 30 pots fired with assorted glaze colors. 

Designed with the potter in mind, Amaco Potter's Choice Glazes add stunning fluid colors and effects to smooth or textured ware with optimal results at Cone 5/6. Step into the ceramic glaze traditions of cultures throughout history with these user-friendly glazes.

Achieve the effects of Cone 10 reduction without the need for a reduction gas kiln or firing to high temperatures. These lead-free glazes are made to fire at Cone 5-6 (2205°F–2269°F, 1207°C–1243°C) in an oxidation kiln. Choose from pint liquid, gallon liquid, or 25 lb dry packages. The 25 lb dry dipping glazes are packaged in 5-gallon buckets for easy pouring. 

Only stirring is necessary before application. For spraying and dipping, glazes may be thinned with water. See manufacturer's instructions for spray application. All colors are food safe, with the exceptions of PC-4 Palladium, PC-64 Aventurine, and PC-9 Vintage Gold. 


Amaco Potter's Choice glazes achieve the effects of Cone 10 reduction without the need for a reduction gas kiln or firing to high temperatures. These lead-free glazes are made to fire at Cone 5-6 in an oxidation kiln.

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Mayco Stoneware Classic Glaze - Tile square finished with Lavender Mist Glaze

User-friendly and consistent from application and layering through the firing process, Mayco Stoneware Classic Glazes include metallic, mirrored, frosted, opal, and ice glazes for creating a variety of finishes, textures, and glaze combinations.   Designed for mid-range to high-fire temperatures, in oxidation or reduction firing environments, on a variety of stoneware clay bodies, these glazes are intended for Cone 5/6 but are also stable and pleasing at Cone 10.    Always conduct a glaze test prior to final use.

User-friendly and consistent from application and layering through the firing process, Mayco Stoneware Classic Glazes include metallic, mirrored, frosted, opal, and ice glazes for creating a variety of finishes, textures, and combinations. For mid-range to high-fire temperatures. Pints.

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Amaco Lead-Free Velvet Underglazes Classroom Pack - Set of 12, 16 oz, View of the jars

Amaco Lead-Free Velvet Underglazes can be used with or without glaze. When left unglazed, they will assume the rich textural appearance of velvet. When glazed with transparent matte glaze, they take on a soft, satin finish. Colors will intensify when covered with a clear transparent gloss glaze, but will lose their matte surface quality.

Apply three coats of Amaco Lead-Free Velvet Underglaze for opaque results. They fire true to color from the jar and can be easily applied to wet clay, greenware, or mature Cone 04 bisque (1971 F / 1077 C). To shade, tint, or customize the color of these underglazes, simply mix them with other colors. 

They may be brushed on mature fired bisque before applying a covering glaze. These underglazes are safe for spray application. Velvets tolerate a wide firing range. Fire to Cone 06-10 (1855°F–2381°F, 1013°C–1305°C). 

Colors can be assorted by size for quantity pricing. 

Some colors vary at higher temperatures. Please refer to the Resources tab of this page to download a PDF of Amaco's color variation chart for colors at Cone 5 and Cone 10. Colors are food safe when applied and fired under Amaco LG-10 Clear glaze.


Lead-free Amaco Velvets are opaque underglazes which have the appearance of velvet when left unglazed. When glazed with transparent matte glaze they will assume a soft, satin finish. Cone 05-10.

PRNI is a black stoneware clay body with a 40% very fine grog that is ideal for wheel-throwing and modeling smooth pieces with fine details. Its intense black firing color in oxidizing atmospheres allows for metallic effects with shades of blue. Food-safe. Cone 5–6 (2205–2269F). 27.6 lb package.

Sio-2 PRNI Black Stoneware Clay | BLICK Art Materials

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These items are subject to special shipping considerations due to size and weight.

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Sio-2 PRNI Black Stoneware Clay

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