Potterscraft Supplies

Nigra Black Stoneware Clay 10Kg Bag

Name: Nigra Black Stoneware Clay 10Kg Bag
Brand: Potterscraft Supplies
SKU: BODY-NIGRA2002-10KG
Price: 44.9 AUD
Availability: InStock

$44.90 AUD

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🎁 Purchase 20+ bags of clay to get a 15% discount. 🎁
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Nigra 2002 - Leading Midfire Stoneware bodies

Black Stoneware Body with Black Grog
At 1050°C and above, it develops into a dark anthracite colour.

Application Temperature:
1000°C - 1240°C

Specifications:

Grog / Graining: 20% / 0-0.2mm
Drying Shrinkage: 6.8%
Firing Shrinkage:

1140°C: 4.7%
1190°C: 7.0%
1240°C: 8.2%

Water Absorption:

1140°C: 7.3%
1190°C: 3.0%
1240°C: 0.2%

Sintering (Water Absorption ≤2%): 1210°C
Thermal Expansion Coefficient (20-400°C): 68 × 10⁻⁷/K (Pre-firing: 1200°C)

· Safety Concerns with Black Clays

· Concerns about the safety of black clays, both in the studio and on functional ware, are valid. Historically, some black clays were colored with manganese oxide, a known toxin.

· NIGRA 2002, sold under the Primo Clays label, is produced by a reputable European manufacturer and is widely distributed across Europe. Our supplier has assured us that this body, pigmented with manufactured stains, is safe for use.

Toggle across the below to see this clays attributes

Clay Bodies	Attaching	Large Sculpting	Slabwork	Throwing
Nigra Black Stoneware	Yes		Yes	Yes

Nigra 2002 Black Clay is a premium dark stoneware clay celebrated for its rich color and versatility in ceramic art. Ideal for both functional and decorative pottery, its excellent workability makes it a top choice for ceramic artists.

Key Properties and Attributes:

1. Non-Toxic.
The intense black is achieved with safe manufactured pigments – NOT manganese.

2. Rich, Black Color:

Distinctive Appearance: Deep, intense black color adds a dramatic touch to ceramic pieces, providing a striking backdrop for glazes and decorations.
Consistent Color: Maintains a uniform black color throughout firing.

3. Versatility:

Wide Range of Applications: Suitable for wheel throwing, hand-building, and sculptural work.
Surface Treatments: Responds well to carving, texturing, and applying slips and underglazes.

4. Workability:

Plasticity: Highly plastic, easy to shape and manipulate, ensuring smooth throwing and precise hand-building.
Consistency and Chamotte: Maintains consistent texture, reducing the risk of cracking or warping. Contains 20% impalpable chamotte.

5. Durability:

High Strength: Fired clay becomes strong and durable, suitable for functional and decorative pieces.

6. Firing Range:

Mid to High Fire: Suitable for firing between cone 5 and cone 10, allowing for varied artistic effects.
Glaze Compatibility: Pairs well with a wide range of glazes, enhancing the depth and
vibrancy of surfaces.

7. Texture and Finish:

Smooth Surface: Fine particle size results in a smooth finish, perfect for detailed work.
Natural Aesthetic: Beautiful natural finish that can be enhanced with burnishing or
polishing.

8. Eco-Friendly:

Sustainable Sourcing: Emphasis on sustainable and environmentally friendly practices. Alldepleted clay mines are restored as natural habitats.

Special Highlight:

1. Unique Artistic Effects:

Contrast with Glazes: Rich black background creates striking contrasts with bright or
metallic glazes.
Enhancing Details: Dark base color highlights carved and textured details, adding depth to artwork.