JJ Adams on wed 19 sep 01
A potter friend of mine told me that a mentor of hers said that gerstley
borate being stored in the bag could absorb moisture in the air and
render it useless. It seems that GB that has absorbed a lot of moisture
will cause the glazes it is used in to crawl badly. Not that I want to
doubt her, but living in a very humid climate raises my concern about
storing the stuff. Should I keep it in a humidity controlled area?
Thanks,
J Adams
Ababi on thu 20 sep 01
I would warm the G.B. to120C and keep it in well closed plastic boxes\ bags
----- Original Message -----
From: "JJ Adams"
To:
Sent: Wednesday, September 19, 2001 09:56
Subject: Gerstley Borate-another problem!
> A potter friend of mine told me that a mentor of hers said that gerstley
> borate being stored in the bag could absorb moisture in the air and
> render it useless. It seems that GB that has absorbed a lot of moisture
> will cause the glazes it is used in to crawl badly. Not that I want to
> doubt her, but living in a very humid climate raises my concern about
> storing the stuff. Should I keep it in a humidity controlled area?
>
> Thanks,
>
> J Adams
>
>
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Tom Buck on thu 20 sep 01
JJ
Will Gerstley Borate change weight? Answer: NO. However, it is
best to store it in an airtight container, well lidded/sealed, away from a
possible flood or inadvertent water spill which would soak a paper bag,
etc.
In fact, GB is such that it already has all the bound
water/moisture it can hold when it comes from the dealer, so there is
little chance of a weight change.
Of more concern with GB is the variation in main ingredients from
bag to bag. that of course soon will be history once Laguna ships the
extra GB it obtained from a pile on the US Borax Corp.'s borax minesite.
til later. peace. TomB.
Tom Buck )
tel: 905-389-2339 (westend Lake Ontario, province of Ontario, Canada).
mailing address: 373 East 43rd Street,
Hamilton ON L8T 3E1 Canada
scott lykens on thu 20 sep 01
it also has a really high loss on ignition. another way to say that, is
when it feels like dry powder and has not been contaminated with anything it
will still weich noticably less after it has been through that pre heat
stage. You could always just fill a big bisque seconds bowl with some gb
and fire it to about 900 degress, or soak at 600 for a spell. then youd
have some gb to play with that doesnt suffer any of these water related
woes.
Or a frit and 2% gum and mix what you use today, today
just a crazy idea. its always worked for me, but everyones different
>
>A potter friend of mine told me that a mentor of hers said that gerstley
>borate being stored in the bag could absorb moisture in the air and
>render it useless. It seems that GB that has absorbed a lot of moisture
>will cause the glazes it is used in to crawl badly. Not that I want to
>doubt her, but living in a very humid climate raises my concern about
>storing the stuff. Should I keep it in a humidity controlled area?
>
>Thanks,
>
>J Adams
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
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Jean Cochran on fri 21 sep 01
Dear JJ,
The answer to your question is YES!!!!!!! I have used Gerstley for years and have
bought a large supply to, hopefully, see me through my lifetime. No good if it
isn't protected from moisture.
Jean Wadsworth Cochran
Fox Hollow Pottery
New Haven, Kentucky
JJ Adams wrote:
> A potter friend of mine told me that a mentor of hers said that gerstley
> borate being stored in the bag could absorb moisture in the air and
> render it useless. It seems that GB that has absorbed a lot of moisture
> will cause the glazes it is used in to crawl badly. Not that I want to
> doubt her, but living in a very humid climate raises my concern about
> storing the stuff. Should I keep it in a humidity controlled area?
>
> Thanks,
>
> J Adams
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
Ray Gonzalez on sun 23 sep 01
I know nothing on this subject but must ask myself... "didn't this stuff
come from the ground???"
ray
----- Original Message -----
From: "JJ Adams"
To:
Sent: Wednesday, September 19, 2001 12:56 PM
Subject: Gerstley Borate-another problem!
> A potter friend of mine told me that a mentor of hers said that gerstley
> borate being stored in the bag could absorb moisture in the air and
> render it useless. It seems that GB that has absorbed a lot of moisture
> will cause the glazes it is used in to crawl badly. Not that I want to
> doubt her, but living in a very humid climate raises my concern about
> storing the stuff. Should I keep it in a humidity controlled area?
>
> Thanks,
>
> J Adams
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
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