Boron Frit/Redart/Silica under OS2 Cover glaze

33.3 Boron Frit (3134 or 169)

33.3 Redart Clay

33.3 Silica

ADD

1 Cobalt Oxide

3 Rutile

 

OS2 Cover Glaze

33.3 Custer Feldspar

27.8 Silica

5.6 Kaolin

33.3 Gerstley Borate

ADD

11.1 Zircopax

Done