Some Raku Glaze Recipes
To fellow Rakuists
If you have a favourite Raku glaze recipe that you use and would like to share with me, please
email me and let me know.
Thanks :)
Clear Crackle
Gerstley Borate 65
Nepheline Syenite 20
EPK (Kaolin) 5
Flint (Silica) 10



This 'Black and White' piece is actually a clear glaze over white clay with the exposed clay turning black because of the smoke in the reduction can.
Copper Blue

Frit 3110             700
Gerstley Borate   70
Silica (Flint)         100
Soda Ash             100
Kaolin (EPK)        50
Copper Carb        30
Copper Blue is an amazing glaze because of the varying results you can get depending on how thick you apply it and how much you reduce it.
Applied thinly and with lots of reduction I get lovely copper with touches of blue.
Light reduction gives a light blue colour.
I sometimes get a heavy to light copper sheen than fades away within hours, leaving a greenish colour.  These two pics are of the same piece, taken within three hours of each other.
Copper Sand

Gerstley Borate 80
Bone Ash 20
Copper Carbonate 5
Cobalt Oxide 5
A very pretty glaze. I get a matte finish with sparkly bits in the right light and copper flashes with reduction. Otherwise just a sparkly blue.
Del Favero Luster

Gerstley Borate 80
Cornwall Stone 20
Copper Carbonate 2
A reliable and easy Turquoise crackle glaze.  With heavy reduction in the kiln and in the reduction can, I get a 'brown berry' colour  with an oily colourful slick.
When I get a bit more spare time I'll add more recipes and pics.  Once again, if you have any recipes you can share with me please let me know :)
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