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de-flocculant for dipping glaze slop..?

updated tue 18 mar 03

 

Lissy DeLeer on sun 16 mar 03


The glaze I'm using has thickened to quite some extent since we first mixed it. It first appeared normal, and now we've had to put double the amount of water in the bucket, so that it will at least flow. It does not appear to get any worse, but it is rather thick, and needs to be applied rather thickly since most of it is water anyway. This takes ages to dry, and it's a bit of a hassle. Does anyone know what kind of de-flocculant I could use? Any household product? I guess vinaigre has the opposite effect, huh? There's no magnesia in this glaze, and the non-coulored equivalent has not thickened. Really strange ;-)

///Lissy

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Ned Ludd on sun 16 mar 03


>The glaze I'm using has thickened to quite some extent since we
>first mixed it. It first appeared normal, and now we've had to put
>double the amount of water in the bucket, so that it will at least
>flow. It does not appear to get any worse, but it is rather thick,
>and needs to be applied rather thickly since most of it is water
>anyway. This takes ages to dry, and it's a bit of a hassle. Does
>anyone know what kind of de-flocculant I could use? Any household
>product? I guess vinaigre has the opposite effect, huh? There's no
>magnesia in this glaze, and the non-coulored equivalent has not
>thickened. Really strange ;-)
>
>///Lissy

One word: Darvan.
NB, a very little goes a looong way. Adding successive increments,
while stirring, of - say - half a teaspoon per 2 or 3 gallons, or 1
tsp per 5 gallons are how I'd proceed to treat the problem batch.

good luck

Ned
in northern California

Ababi on mon 17 mar 03


Is there Gerstley Borate?
Try to defloculate with Soda ash and sodium silicate. Try gently. I use it=
mainly to
defloculate paperclay you can take (Try) 1.5 gram of each into 400-500 gra=
ms of
water - into one K"g of glaze. Of course you can take tenth of it to 100 g=
ram batch of
glaze as it is a test and see what happens. I thought to use it with my cr=
awling glaze
in order to make them thicker than thicker!
Ababi
---------- Original Message ----------

>The glaze I'm using has thickened to quite some extent since we first mix=
ed it. It first
appeared normal,
>and now we've had to put double the amount of water in the bucket, so tha=
t it will at
least flow. It does not
>appear to get any worse, but it is rat
>her thick, and needs to be applied rather thickly since most of it is wat=
er anyway.
This takes ages to dry,
>and it's a bit of a hassle. Does anyone know what kind of de-flocculant I=
could use?
Any household
>product? I guess vinaigre has the opposite effe
>ct, huh? There's no magnesia in this glaze, and the non-coulored equivale=
nt has not
thickened. Really
>strange ;-)

>///Lissy

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>Skaffa gratis e-mail och gratis internet p=E5 http://www.spray.se

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