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lead poisoning in unglazed ware

updated thu 8 oct 09


gayle bair on wed 7 oct 09

There's much more of a threat at the customer's local "paint you own"
for example see:
And look at the MSDS for one of their favorite glazes the Duncan Gloss
28% lead
MSDS says keep away from children and pregnant women
do not eat drink around those glazes
So what do those stores do??
They have birthday parties for kids
Fire the kilns in the back room.... vented.... who knows ????
Then send them home with bowls that have 28% lead in them.
They claim that they are safe if it's fired properly but when I tested
one with a lead testing kit it turned bright pink.
According to Monona Rossel the standard for lead was set way long ago
on equipment that is totally antiquated today.
So the lead tests you can buy in the stores are more sensitive than
what the standard is still set by today.

Gayle Bair
Bainbridge Island WA
Tucson AZ

On Oct 7, 2009, at 1:23 PM, marci and rex wrote:

> At 12:37 PM 10/7/2009, Lis Allison wrote:
>> On Wednesday 07 October 2009, Chaeli Sullivan wrote:
>> > Oh! That's funny, Fred !!!
>> > How in the world did you keep a straight face when the potential
>> > customers replied: fear of lead poisoning in the unglazed ware?
>> Not at all funny! My local potters' guild has just passed a rule
>> against
>> any food surface which is not glazed because..... drum roll,
>> please....
>> the clay could release lead. (Also could trap bacteria but that
>> almost
>> makes sense.)
> Sounds like your guild is in serious need
> of an educational sit down ... I cant believe there wasnt one
> potter in there with sense enough to speak up ...
> marci