Rikki Gill on wed 23 sep 09
I have just started using mason stains again, and have gotten good =3D
results using them to cone 11 in heavy reduction. Are they still toxic =3D
[I use them 'on glaze'] at that temperature with some glaze for body? I =
only use them for small areas, like petals of a flower.
I used them at cone 5 oxidation before I started reduction firing,
with no knowledge that this might be unhealthy.