Al Sather on fri 5 apr 02
I am wanting to test a glaze for durability in a dishwasher.
Fortunately I do not have one. So, I was wondering if I
bought some dishwasher detergent and placed a vessel
in a cooking pot (stainless steel), and boiled it for a bit,
would this simulate a dishwasher and give me an idea
if the glaze is dishwasher durable? Any suggestions as to
how long to let it boil and what concentration of detergent
to use. Or is this a case of just try it and see what happens.
If this test is too aggressive, then I may discard a good glaze,
and if it not, then I may have a false impression as to its
durability.
Thanks in advance
--
Al Sather, vo1qe@rac.ca
Dogberry Clay Studio
24280 Parklawn St
Oak Park, MI 48237-1508
"Throw clay not mud"
John Hesselberth on fri 5 apr 02
Hi Al,
You can try 5% soda ash simmered for 6 hours. This is similar (but not
identical) to an ASTM test (C614-74) that is used on the porcelain enamels
that line dishwashers and washing machines. Soda ash is a component of many
dishwasher detergents. It is a pretty vigorous test. There is more
information on it in our book Mastering Cone 6 Glazes.
Regards,
John
on 4/5/02 9:26 AM, Al Sather at vo1qe@RAC.CA wrote:
> I am wanting to test a glaze for durability in a dishwasher.
> Fortunately I do not have one. So, I was wondering if I
> bought some dishwasher detergent and placed a vessel
> in a cooking pot (stainless steel), and boiled it for a bit,
> would this simulate a dishwasher and give me an idea
> if the glaze is dishwasher durable? Any suggestions as to
> how long to let it boil and what concentration of detergent
> to use. Or is this a case of just try it and see what happens.
>
> If this test is too aggressive, then I may discard a good glaze,
> and if it not, then I may have a false impression as to its
> durability.
>
>
> Thanks in advance
> --
> Al Sather, vo1qe@rac.ca
>
> Dogberry Clay Studio
> 24280 Parklawn St
> Oak Park, MI 48237-1508
>
> "Throw clay not mud"
>
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Web sites: http://www.masteringglazes.com and http://www.frogpondpottery.com
Email: john@frogpondpottery.com
"The life so short, the craft so long to learn." Chaucer's translation of
Hippocrates, 5th cent. B.C.
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