Kent Potters' Association Glaze Database

Kent Potters' Association Glaze Database

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Low Temperature
and Raku Glazes
(below 1000°C)

Tim Proud's Black Raku Glaze
Submitted by Janet Jackson
Recipe
Lead Bisilicate90
Alkaline Frit20
Copper Carbonate4
Cobalt Carbonate3
Red Iron Oxide4
Bentonite3
Formula  
Application and Firing Apply by brush or pouring - useful in combination with other glazes. A bright lusterous black with heavy or light post firing reduction.
Credits etc Tim Proud
Tony Foard's White Raku Glaze
Submitted by Tony Foard
Recipe
Borax frit (Potterycrafts P2955)95
China clay 5
Tin oxide5
Formula  
Application and Firing This is the white crackle glaze that I use on the insides of most of my raku bowls.
Credits etc Potters tip - A good way of measuring small amounts of glaze if you only have a rudimentary set of scales and weights that are not small enough is to get £1 worth of pennies and use them as weights.

Blue-Black Lustre (Raku)
Submitted by Angela Howe
Recipe
Calcium Borate frit80
Borax frit80
China clay 30
Tin oxide10
Cobalt6
Red iron oxide8
Coper carbonate10
Formula  
Application and Firing  
Credits etc This is based on an nameless recipe I found on the Web and messed around with!

Raku slip-resist
Submitted by Nichola Hanman
Recipe
Gerstly Borate35
Frit 311065
Formula  
Application and Firing Make a slip from 60% China clay, 40% flint. Mix to a full cream milk consistency and sieve five or six times. Apply to work at least 24 hours before glaze application. The glaze should be mixed to consistency of cream to liquid yoghurt. Fired to correct temp when the glaze has an "orange peel" effect.
Credits etc Slip: Dave Roberts
Glaze: Bill and Kate Jacobson
Both from from Fired Up with Raku by Irene Poulton

Clear Raku glaze
Submitted by Susan Neal
Recipe
Gerstly Borate50
High Alkaline Frit50
China clay10
Formula  
Application and Firing This is a clear base glaze. Add oxides for colour.
Take out of kiln when bubbling in glaze smoothes out to a shiny surface, hold in air for short time then reduce in sawdust or paper.
Credits etc Janet Lundie