Sibelco 2005: Nigra

A grogged black clay, used for both throwing and hand building. The slightly coarse material allows you to make larger and more ambitious designs.

Unfired characteristics : A smooth grey body, with a subtle coarse feel. Perfectly usable on a wheel.

Working notes: A good throwing clay for larger pieces, even when pulling thin edges. It produces clean lines and slab builds well, slightly better suited to larger hand building wares. For more on the clays glaze fits, see product attachments.

It turns fully black at 1200°C.

Texture – Medium

Fired colour – Black

Ideal bisque – 999°C

Glaze range -1000°C – 1240°C

Shrinkage – 1200°C – 7.6% (Please refer to Technical Data Sheet for further information)

Grog – 20%, 0.5mm grain size

Available in 10kg

Ideal for: Throwing, hand building and sculpture.