macs mud northern red clay

19kg

Macs Mud Northern Redstone Clay is a terracotta clay which extraordinarily holds an orange/red colour from earthenware right through to stoneware temperatures. Includes 5% fine sand which helps provide excellent stand-up strength, and a minor ‘rustic’ iron speckle to fired clay and glazes. High silica content so take care on cooling. Made from 100% NZ clays.

Best application: Throwing and general hand building

MESH:

60# with 5 percent 20-40# sand

FIRING:

Bisque at 1000oC

Glaze from 1050 – 1280oC

SHRINKAGE:

9% wet to dry

12% at 1100oC

13% at 1180oC

14% at 1220oC

15% at 1280oC

WATER ABSORPTION:

14% at 1150oC

8% at 1180oC

5% at 1220oC

3% at 1280oC