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novice question for the glaze gurus

updated fri 20 feb 04

 

Jennifer Buckner on wed 18 feb 04


In November I mixed up a batch of Variegated Blue from M^6G using a ratio
of 10,000 gm dry base materials plus colourants to 10 liters of water. It
was a good light cream consistency and worked well. I mixed this batch
together with another batch I'd mixed a month or so earlier (also the same
ratio and same results). This glaze has sat in a plastic bucket, fairly
well covered, in my studio until now.

The glaze has settled, but not hard-panned, and today I stirred it up and
tried to sieve it before glazing some pots. The glaze stirs well enough,
but when I pour it into the sieve (80 mesh) the stuff turns to a very thick
pudding-like consistency and takes forever to brush through. The material
that does get through seems to be far more liquid, but there's not much
'sludge' left in the sieve, so I don't think I'm removing essential materials.

In my not-so-blissful ignorance I thought it might need some
de-flocculating, so added, as per M^6G, a little Epsom salts in warm
water. This had little, if any, effect. I added some water but I'm not
sure this was the best solution.

Can someone tell me what's happening and how I deal with it?

Jennifer

Jennifer G. Buckner jenniverre@earthlink.net

John Britt on thu 19 feb 04


Jennifer,

Try putting in a couple of teaspoons of Epsons Salt.

Hope it helps,

John Britt

Jennifer Buckner on thu 19 feb 04


At 07:16 AM 2/19/2004, John Britt wrote:
>Try putting in a couple of teaspoons of Epsons Salt.


John, in my original message I mentioned that I'd added a little Epsom
Salts in warm water. As per M^6G, I used 1/2 gram in a small amt. of water
per 1000 ml of glaze. Did you mean that I should have added considerably
more?

Jennifer




Jennifer G. Buckner jenniverre@earthlink.net