Technical Specifications
Description
A white vitreous china body maturing at 1150 - 1170 o C for throwing, hand building,
RAM pressing and casting.
Mesh : 80#
Recommended Firing
| Bisque |
Glaze |
|
1000° C |
1150° C to 1170° C |
|
Orton Cone 06 |
Orton Cone 1 to 3 |
|
at 150° C per hour |
at 150° C per hour |
Coefficient of Expansion
Sample fired at 1160° C, Orton cone 2. Linear expansion is
0.326% at 500° C and coefficient is 72.3 x 10-7 from 200° C to 500° C.
Presentation
Fully de-aired 10 kilogram block wrapped in recyclable
polythene bags.
Moisture content of standard clay is 22% to 24%, PR 3 to 4.
Other moisture contents are available on special request using
our Penetrometer Readings (PR) outlined below.
|
PR |
Consistency |
|
2 to 3 |
Soft |
|
3 to 4 |
Ideal throwing |
|
5 to 6 |
Firm throwing, slab work |
|
7 to 10 |
Slab, pressing or extruding |
Preparation
Crude clays are blunged, sieved and passed over rare earth
magnets, then stored in constantly agitated farm tanks. Final body blend is made
with millimetre accuracy with powdered raw materials being added and agitated
in. With this manufacturing method we can ensure reproducible recipe formulation
to within 0.1%. Final body in liquid form is sieved and passed over rare earth
magnets once again and then filter pressed. Filter pressed clays are then stock
piled in cake form and allowed to age. Extruding takes place through a de-airing
pugmill and clay is sealed airtight in polythene bags which can be stored
indefinitely.
Potter's Comments
Joseph Szirer, Senior Lecturer in Ceramics, Monash University,
Melbourne
"A delight to throw, good to turn &
easy to join. Fires as strong as stoneware.
An excellent all round vitreous china
body."
