Edouard Bastarache Inc. on thu 6 jul 06
Alisa,
Smart says he has no idea about your yellow glaze,
probably due to the fact he does not have the
formula.
Later,
Edouard Bastarache
Le Français Volant
The Flying Frenchman
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
www.sorel-tracy.qc.ca/~edouardb/Welcome.html
http://perso.wanadoo.fr/smart2000/index.htm
http://www.pshcanada.com/Toxicology.htm
http://www.flickr.com/photos/potier/172943983/
http://www.flickr.com/photos/potier/172941969/
----- Original Message -----
From: "Smart-laposte"
To: "Edouard Bastarache Inc."
Sent: Thursday, July 06, 2006 3:17 PM
Subject: Re: Re: How to preserve glazes containing
high boron frits.
> Ça fait plaisir que cette Alisa reconnaisse les
> défauts de sa glaçure dans
> mon article court sur la conservation des
> glaçures de frittes hautes en
> bore.
> Pour ce qui est de la glaçure jaune, aucune
> idée..
>
> Cordialement, Denis
>
> Smart.Conseil
> Le site Français dédié aux passionnés de
> céramique
> El sitio Francés dedicado a los amantes de la
> cerámica
> The French site dedicated to ceramics lovers
> smart2000@wanadoo.fr
> http://perso.wanadoo.fr/smart2000/
> ----- Original Message -----
> From: "Edouard Bastarache Inc."
>
> To: "Smart-Laposte"
> Sent: Thursday, July 06, 2006 5:59 PM
> Subject: Fw: Re: How to preserve glazes
> containing high boron frits.
>
>
>> Salut,
>>
>> que des mots mots et des questions
>>
>>
>> Edouard Bastarache
>> Le Français Volant
>> The Flying Frenchman
>>
>> Sorel-Tracy
>> Quebec
>> edouardb@sorel-tracy.qc.ca
>> www.sorel-tracy.qc.ca/~edouardb/Welcome.html
>> http://perso.wanadoo.fr/smart2000/index.htm
>> http://www.pshcanada.com/Toxicology.htm
>> http://www.flickr.com/photos/potier/172943983/
>> http://www.flickr.com/photos/potier/172941969/
>>
>>
>> ----- Original Message -----
>> From: "Alisa Liskin Clausen"
>>
>> To:
>> Sent: Thursday, July 06, 2006 9:32 AM
>> Subject: Re: How to preserve glazes containing
>> high boron frits.
>>
>>
>> > Dear Edouard
>> > This is an excellent article and perhaps
>> > explains some of the frustration
>> > I have had with premixed Raku glazes.
>> >
>> > Although Raku glazes are easy enough to mix,
>> > if
>> > you call one Frit in water
>> > a glaze recipe!, but still, there are times
>> > when
>> > myself and students use
>> > premixed Raku glazes from our supplier.
>> >
>> > The premixed glazes, from jar to jar,
>> > sometimes
>> > are fine and sometimes
>> > bubble. Although,we at first thought the bad
>> > onesneeded more time to
>> > smooth out, they only went from bubbling to
>> > just
>> > over fired, but never
>> > smoothed out.
>> >
>> > I am thinking that this study by Smart,
>> > suggesting that the high boron
>> > frit's causes crystals in the glazes and
>> > subsequently bubbles on the
>> > surface when the water is released, is our
>> > problem. The premixed glazes
>> > sit on the dealer's shelf for a long time and
>> > perhaps are developing this
>> > cyrstal problem. We do not seive the
>> > premixed
>> > glazes, but now we will.
>> >
>> > In general, I mix my own Raku glazes with
>> > amounts just for each firing
>> > because I fire infrequenetly or a rash of
>> > firings within weeks, and then
>> > not again for several months.
>> >
>> > I will advise my students to try using
>> > demineralized water instead of tap
>> > water if they intend to mix Raku glazes that
>> > they will store. They also
>> > should seive the premixed ones.
>> >
>> > Thanks for helping to solve this mystery with
>> > good explanation.
>> >
>> > The other mystery perhaps Smart has an idea
>> > about, is why the premixed
>> > yellow Raku glaze needs much longer to mature
>> > than all of the other
>> > glazes. Since I do not know what makes the
>> > yellow, I assume it is a stain.
>> > However, I wonder if stains can make a Raku
>> > glaze any more refractory than
>> > without. The whites with refractory
>> > opacifiers
>> > melt as quickly (20
>> > minutes at 900c)as the clear mostly Boron
>> > Frit
>> > glaze.
>> >
>> >
>> >
>> > Best regards from Alisa in Denmark
>> > (cheating, still in NJ)
>> >
>> >
> ____________________________________________________________________________
> __
>> > 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.
>> >
>>
>
>
Edouard Bastarache Inc. on sat 8 jul 06
Alisa,
"Hélas, c'est pas réversible, ce serait trop
facile !!"
(Alas, it is not reversible, it would be too
easy!!)
sorry Smart says the reaction is not reversible.
Edouard Bastarache
Le Français Volant
The Flying Frenchman
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
www.sorel-tracy.qc.ca/~edouardb/Welcome.html
http://perso.wanadoo.fr/smart2000/index.htm
http://www.pshcanada.com/Toxicology.htm
http://www.flickr.com/photos/potier/172943983/
http://www.flickr.com/photos/potier/172941969/
----- Original Message -----
From: "Smart-laposte"
To: "Edouard Bastarache Inc."
Sent: Saturday, July 08, 2006 12:13 PM
Subject: Re: Re: How to preserve glazes containing
high boron frits.
> Hélas, c'est pas réversible, ce serait trop
> facile !!
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