Zart School Catalogue 2018

Page 214

Clay

Prices are current at time of print, but subject to change • Prices exclude GST

CERAMICS, MODELLING & MOSAICS

The Stages of Clay

Earthenware Paper Clay White – Clayworks

Stoneware Clay – Northcote Pottery Stoneware clay becomes vitreous with higher firing and is therefore suitable for functional ware. Bisque fire at 1000°C .While it bisque fires at the same temperature as Earthenware, it must be glaze fired at higher temperatures using Stoneware glazes. Approximate slab size: 24 x 20 x 10cm.

School Clay White – Clayworks EARTHENWARE Easy to work, white to buff clay. Bisque fire at 1000°C. If glazing, use Earthenware glazes. Approximate slab size: 29 x 16 x 11.5cm.

10kg

ML102

10kg

ML107-WH

Each

$11.25

Each

$15.40

Raku Clay – Northcote Pottery Raku clay is used for a special glazing process. This clay has a natural grittiness allowing it to withstand high glaze temperatures. Suitable for hand building and sculpture. A robust clay. Bisque fire at 1000°C. Approximate slab size: 24 x 20 x 10cm.

EARTHENWARE A stronger dry clay enabling thinner, more delicate work. Joining dry-to-dry paper clay and dry-to-soft is possible. Bisque fire at 1000°C. When glazing, use Earthenware glazes. Approximate slab size: 29 x 16 x 11.5cm.

10kg

ML108

Each

$16.95

NB: Clayworks Terracotta Clay available on request.

Earthenware Clay – Northcote Pottery

Terracotta Clay – Northcote Pottery

EARTHENWARE Porous clay not suitable for functional ware. Bisque fire at 1000°C. Use Earthenware glazes. Approximate slab size: 24 x 20 x 10cm.

EARTHENWARE This brown clay becomes orange when bisque fired. Bisque fire at 1000°C. Use Earthenware glazes. Approximate slab size: 24 x 20 x 10cm.

10kg

ML100

10kg

ML106

10kg

ML101

Each

$11.25

Each

$11.25

Each

$11.25

Tip! You can make (approx.) 20 tennis ball size pieces of clay from a 10kg slab of clay

212

Supporting teachers in creative education

Slip: Slip is used to join

Stage One – Malleable: The stage

Stage Two – Leather Hard: Clay has started to

where you can build artwork. Wrap leftover clay in a clean, damp cloth/wipe (pg 278) and put in an airtight plastic bag.

dry out but you can still carve into the artwork. This is also the stage to burnish pieces (smooth them out). Wrap leftover clay in a clean, damp cloth/wipe (pg 278) and put in an airtight plastic bag.

Stage Three – Bone Dry: Bone dry

Stage Four – Bisque Fired: This is the first

Stage Five – Glaze Fired: This is the

means that the piece is fully dried out and it is ready to go in the kiln. It is best to slowly dry out the clay to prevent cracking, by lightly covering with plastic bags.

firing. The clay can now be decorated with an Underglaze or Brush On Glaze. Alternatively, bisque fired clay can be painted with acrylic paint or Clay Transfer Tissue can also be applied.

last firing and must be done at a higher temperature (see instructions). Make sure there is no glaze on the bottom of your piece as it may join to the kiln shelf.

clay. Making Slip: Dried clay is crushed and mixed with water – mix to a custard consistency. Keep in airtight container.

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