Tony Hansen on sat 23 nov 96
> Can someone help me change the following glaze from a ^6 to ^9/10
> while altering its character as little as possible?
> Soda Spar 30
> Spodumene 12
> Ball Clay 10
> Red Clay 20
> Dolomite 18
> Gers. Bor 10
Try killing the Gerstley borate. Its a powerful low temperature flux and
you should not need it for cone 9. After that figure out what mix of
kaolin and flint have the same SiO2:Al2O3 ratio as your glaze and line
blend this addition until the melting is just right.
Tony Hansen, IMC - Pulishers of INSIGHT, FORESIGHT, Magic of Fire