Raku Glaze

September Glaze: Copper Matt


The flashing will vary with each firing.  Both of these were fired to 1875F and given medium post-firing reduction using newspaper after pulling from the kiln.

Copper Matt

Add

%75 Gerstley Borate
      %12.5  Nepheline Syenite
      %12.5  EPK

    Add:
       %8 Copper Carbonate
       %2 Cobalt Carbonate

  Add:
       %16 Synthetic Bone Ash