Replacement for Soyer 159 White
Like many others, I was left wondering what I could use instead of my standby White, Soyer 159. I believe this was withdrawn, along with 59, because of its high lead content, and has been replaced with 160F, of which Mo (Vitrum Signum) kindly sent me a sample.
I have used 159 in all sorts of ways:
by itself, high fired on corrugated copper it gives lovely blues in the hollow and golds and blacks on the highs
over other whites (particularly Lathams O141), to slide and produce flow marks and colour change in bowls
as the bottom layer under certain lead free enamels to give a lovely feathering effect (thanks to Harry Nicholson at the last Conference for this tip).
Previously I have tested all my whites over firescale and in combination with other whites, so I did have some concept of what might work. But I decided to run a new series of tests using Lathams, Schauer and Blythes enamels. I deliberately didn’t test the Soyer range in case they decide to remove lead from everything! David Bainbridge sent me generous samples to experiment with.