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metal leaching--request to share data

updated wed 18 nov 98


John Hesselberth on tue 17 nov 98

Some of you may remember that when I started on my literature search on
this subject I offered to begin a data base of metal leaching data if
Clayarters would share it with me. In the last month I have received a
grand total of 1 piece of data (thanks again Pete) -- I guess technically
that is a datum -- and that was for the vinegar soak test. It wasn't a
quantitative analysis. Either no one is having glazes tested or, for
whatever reason, no one is willing to share their data.

I have had 6 glazes tested so far and will continue at a measured pace.
I will share that data when it begins to make some sense to me. Is
anyone else willing to share their's? I would need the recipe, the
firing conditions and the results. If you have some, please consider
sending it to me. As before, if you ask me to keep it confidential, I
will. In that case I will only use it to help me draw conclusions. Send
anything you are willing to to Thanks.

John Hesselberth
Frog Pond Pottery
Pocopson, PA 19366 USA
EMail: web site:

"The whole aim of practical politics is to keep the populace alarmed, and
hence clamorous to be led to safety, by menacing it with an endless
series of hobgoblins, all of them imaginary." H.L. Mencken, 1925