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Zinc Silicate Crystalline Glaze Pottery

A chronicle of my recent progress

Phil Hamling

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Crystalline Glaze Information

 

5-10-07 Clay Comparison

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Bailey # C-050-019

Tucker's Pottery Supply

10-85 Translucent Porcelain C/10
A classic porcelain made with a combination of the finest North American kaolins. A very small addition of a white firing ball clay is included to improve workability while maintaining good translucency. It fires very white in Oxidation and slightly grey in Reduction @ Cone 10.

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Bailey #C-050-020

Tucker's Pottery Supply

H.H.P. Porcelain C/10
This is Tucker’s most popular non-Grolleg porcelain. It is a classic high-kaolin / low-ball clay formula for throwing and handbuilding. H.H.P. is a trouble-free body that trims and dries easily. It fires very white in Oxidation and a little grey in Reduction @ Cone 10.

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Bailey # C-050-021

Tucker's Pottery Supply

English Porcelain C/10
A premium Grolleg-based porcelain that contains no ball clay. It is the whitest most translucent porcelain we’ve seen. Care must be taken when firing because this clay completely vitrifies at Cone 10. Beautifully white in both Oxidation and Reduction

   

Bailey # C-010-257

Standard Clay Co.

GROLLEG PORCELAIN C/8-10
A porcelain body with a parian-like quality. It’s white and tight and translucent when thin. Contains no ball clay.

Miller 550

Manufactured by Laguna Clay Co. Byesville, Ohio 43723

Fine, translucent porcelain based on Grolleg kaolin.  Good for throwing & handbuilding.

Highwater Clays

P10 porcelain- A very plastic, domestic porcelain which throws extremely well.

 

 

Highwater Clays Helios-This is our Grolleg-based porcelain. It is very bright and a joy to throw. Cone 11 is no problem for this clay.

 

 

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