Phyllis E. Tilton on fri 24 jul 98
Clayarters: This subject coud have been addressed before. I have only
subscribed since February so would have missed it. My question involves mixing
an underglaze into slip. Has anyone had experience with this? TIA
Shannon Hayes on sun 26 jul 98
Mixing an underglaze into slip would be expensive. Why don't you try mason
stains in slip or raw colorants.
the penny pinching from Texas where I have to pay the elec bill and NOT for
the kiln LOL
Milton Markey on sun 26 jul 98
My question involves mixing an underglaze into slip. Has anyone had experience
with this? TIA
I have mixed underglaze (UG) colors into slip formulas. Many times, the
results came out great, but more often than not, the UG colors were "eaten"
either by heat (I fire to cone 6) or by the slip mineral reaction.
The caveat you might want to follow: the bluer the UG, the more likely it will
work with most slip formulas. Likewise, UG colors such as yellow, plum reds,
and light green don't mix well with many slips, or will come out greyish in
the glaze firing.
The best bet is to experiment--try several slip recipies, and mix in the UG
colors of your choice with each slip. Use test chips before committing your
good wares, to see if the colors fade, or come out superb.
Yucca Valley is experiencing a cold snap. It's 90 degrees tonight! Time to don
Annette Frank on sun 26 jul 98
Phyllis, - I never tried underglaze in slip on an actual piece. I did a
few test tiles, I also tried mixing underglaze directly in the clay. I
made "sandwiches" of different colors, but I found that too much
underglaze was needed if I wanted stronger colors. When I fired the test
tiles, they were too pale.