Potters Clay
Importers, exporters and retail suppliers of the biggest range of potters clay in New Zealand...


CLAY RANGE

Potters Clay Nelson

The wide range of clay products includes stonewares, red to buff earthenwares and white clays. Below is the description and characteristics of each of the clay products. Cone figures are for Orton large cones @ 60˚ per hour firing ramp. Temperatures in brackets are equivalents in degrees centigrade.



Stoneware


PCW(POTTERS CLAY WHITE)

A versatile, pale grey-firing (grey in reduction) stone ware body with excellent throwing characteristics. Suits many all applications  (including raku firings because of a good thermal shock resistance).   80 mesh. Drying shrinkage 5-8%, total when fired about 16%. Firing range Cone 9-10 (1257-1282 degrees centigrade)


SC80

Very similar in most respects to PCW but slightly smoother in texture. Very plastic and superbly suited to all domestic stoneware applications. 80 mesh. Drying shrinkage 5-8%, total when fired about 16%. Firing range Cone 9-10 (1257-1282 degrees centigrade)


WHITE DOMESTICWARE (WDW)

A blend of 50% Nelson White and 50% SC80. A smooth clay with excellent throwing, drying and firing characteristics. 80 mesh. Drying shrinkage 6 %, total when fired 13-16%. Firing range Cone 8-10 (1247-1282 degrees centigrade).


LF18

A cream to pale-grey (darker grey in reduction) stoneware. An excellent throwing clay. 50 mesh. Drying shrinkage 5-8%, total when fired about 17%. Firing range Cone 7-8 (1237-1247 degrees centigrade)


No21

An attractive iron-rich stoneware, buff to light brown in colour (darker in reduction). Good plasticity and workability. 50 mesh. Drying shrinkage 6-9%, total when fired about 16%. Firing range Cone 7-8 (1237-1247 degrees centigrade)


COLLEGE STONEWARE

Cream to grey coloured. Excellent for throwing. 50 mesh. Drying shrinkage 5-8%, total when fired about 16%.Firing range Cone 7-8 (1237-1247 degrees centigrade)


CB3

Easy throwing, versatile stoneware clay. Fires buff to grey in oxidation, dark grey in reduction. Useful far all domesticware, handbuilding and well suited to salt glazing.50 mesh. Drying shrinkage 5-7%, total when fired about 16%. Firing range Cone 1-5 (1120-1170 degrees centigrade)


SC50

Identical in virtually all respects to SC80, but screened to 50 mesh. Good for larger pieces. 50 mesh. Drying shrinkage 5-7%, total when fired about 15%. Firing range Cone 9-10 (1257-1282 degrees centigrade)


RMK3

A fine textured, strong throwing clay, highly plastic, cream to fawn colour. Suitable for all domesticware and raku. 80 mesh. Drying shrinkage 7-9%, total when fired about 16%. Fires to Cone 10 (1282 degrees centigrade)


CB3-G

A version of GB2 with 10% Huntly grog (10 mesh) added to assist handbuilding. Drying shrinkage 5-8%, total when fired about 15%.  Firing Cone 1-5 (1120-1170 degrees centigrade)


SLAB 30

A 30 mesh (coarser version of SC50 with even further enhanced strength and low shrinkage characteristics. Drying shrinkage about 5%, total when fired 12-15%.  Firing range Cone 10-11 (1282-1293 degrees centigrade


SLAB

A naturally grogged, white to grey firing stoneware with excellent green strength and low shrinkage. The natural coarse sand fraction contains feldspar crystals which, when fired, project above the ceramic surface, giving the piece a remarkable texture. 8 mesh. (minus 2mm). Drying shrinkage 5-8%, total when fired about 14%. Firing range Cone 10-11 (1282-1293 degrees centigrade)

MODELLING CLAY

A mixture of earthenware and stoneware suitable for beginners, schools and recreational potters. 50-80 mesh. Firing variable. Shrinking variable.


NELSON RAKU (GROGGED)

Thermal-shock resistant buff coloured clay containing 20% 10-mesh (1.9mm) white grog. Drying shrinkage 5-8%, total when fired about 14%. Firing range Cone 06-6 (995-1228 degrees centigrade)



Red to Buff Earthware


LFR (LOW FIRE RED)

A deep red coloured terracotta body, exceptionally plastic and workable. 50 mesh. Drying shrinkage 8-10%, total when fired 15-17%. Firing range Cone 04-3 (1060-1152 degrees centigrade)



NELSON RED

A rich red coloured terracotta body with exceptionally low shrinkage and optimal workability for all applications. 50 mesh Drying shrinkage 5-7%, total when fired about 13% Firing range Cone 1-5 (1136- 1184 degrees centigrade) depending on desired colour.


PCR

A medium red terracotta clay suitable for throwing and hand building. 50 mesh Drying shrinkage 7-9%, total when fired about 15%. Firing range Cone 1-5 (1136-1184).



E2

A fine-grained medium, red terracotta clay with a dense silky texture. 80 mesh. Drying shrinkage 7-9%, total when fired about 15%. Firing range Cone 1-5 (1136-1184 degrees centigrade)


RKF

A pale buff-pink earthenware clay suitable for throwing and handbuilding.50 mesh. Drying shrinkage 6-9%, total when fired about 15%. Firing range Cone 1-5 (1136-1184 degrees centigrade)


COLLEGE EARTHENWARE

shrinkage 8-10%, total when fired 15-17%. Firing range Cone 04-3 (1060-1152 degrees centigrade)


CHAMOTTE

Red terracotta body,10%-10 mesh grog added. 10 mesh. Drying shrinkage 8-10%, total when fired 15-17%. Firing range Cone 1-5 (1136-1184 degrees centigrade)
RED MODELLING
White Clays


NELSON WHITE

A pure white earthenware to porcellaneous stoneware body. Significantly more plastic than porcelain. Suitable for small to large thrown pieces. Very fine and smooth. 200 mesh. Drying shrinkage 5-6%, total when fired about 15% (Cone 3) and 16% (Cone 10). Recommended firing range Cone 6-10 (1228-1282 degrees centigrade)


MID FIRE WHITE

Has the best qualities of Nelson White, but a significantly lower maturing temperature. 200 mesh. Drying shrinkage 5-6%, total when fired about 15%. Firing range Cone 2-6 (1142-1228 degrees centigrade)



Potters Clay Ultra Vitreous
ULTRA VITRETOUS

A special purpose white earthenware to vitreous china body for throwing, with durability of high-fired porcelain. 200 mesh. Drying shrinkage 5-7%, total when fired 14-17%. Firing range Cone 03-1 (1085-1136 degrees centigrade). Fully mature at 1136



TILE BODY

A white body designed to minimise wrapping ( not suitable for throwing). Good for jigge-jolleying or ram processing. 200 mesh. Drying 5%, total when fired 12%. Firing range Cone (1136-1184 degrees centigrade)



R2 (Ram 2)

A pure white body especially designed for ram pressing, but also has proven to be an exceptional throwing body. Good for larger work where low shrinkage and extra resistance to drying stresses is required. 200 mesh. Drying Shrinkage 5%, total when fired 12-14%. Firing range Cone 2-6 (1142-1228 degrees centigrade)



WHITE DOMESTICWARE (WDW)

A blend of 50 % Nelson White and 50% SC80. A smooth clay with excellent throwing, drying and firing characteristics. 80 mesh. Drying shrinkage 6%, total when fired 13-16%. Firing range Cone 7-10 (1240-1305 degrees centigrade)
WHITE MODELLING
Pure white plastic modelling clay 200 mesh and economical. Suitable for schools, art studios etc. If fired should be only take n to 1150˚C as it may contain low-fire clays. 200 mesh. Drying shrinkage 5%, total when fired 12-16%. Firing range; up to 1150˚C