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: mixing glazes

updated thu 17 jul 03

 

iandol on thu 10 jul 03


Dear Cliona,

If the batch you are preparing does not contain any clay, especially =
Bentonite, then you could tip most things right into the water.

But anything which will be come sticky and forms an unmixable mass needs =
to be dry blended. I put everything into a stout plastic bag, fold over =
the mouth to trap in as much air as possible and shake the thing about. =
But this is only for 2 or 3 Kg. Vince Pitelka has a great way of using a =
cylindrical drum which is sealed. Rolled around this mixes the dry stuff =
most efficiently. There are some nice double cone mixers on the market, =
at a price, which do a very thorough job as well.

Best regards,

Ivor Lewis. Redhill, South Australia

Ron Roy on mon 14 jul 03


I have never dry mixed glazes before adding them to water - even those with
bentonite or a lot of clay.

Just a little slow stirring with a spoon or a scoop. I do always sieve
twice through 80 mesh - which is where the real mixing happens.

RR

Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513

claybair on tue 15 jul 03


Ron,
I use a 100 mesh sieve.
I'm wondering if I am straining out
anything important with that size?

Gayle Bair
Bainbridge Island, WA
http://claybair.com

-----Original Message-----
From: Ron Roy


I have never dry mixed glazes before adding them to water - even those with
bentonite or a lot of clay.

Just a little slow stirring with a spoon or a scoop. I do always sieve
twice through 80 mesh - which is where the real mixing happens.

RR

Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513

Ron Roy on wed 16 jul 03


Hi Gayle,

100M seems like more than is necessary - and it takes so much longer. You
may have a point - there will be more materials that will not go through.

I also tend to add more water than I need - helps the sieving go faster and
I just take off some water the next day - as long as you don't have any
solubles in the glaze.

I do know that 60 mesh is too course - start getting unmelted bits.

There is one exception - I have a 140 mesh sieve - celadons sometimes are
blotchy because the iron is not dispursed properly - so I take the iron and
a cup of glaze and put it through 140 M - works just fine. Tried all the
different mesh sizes up to 140 till I found the one that worked.

RR


>I use a 100 mesh sieve.
>I'm wondering if I am straining out
>anything important with that size?
>
>Gayle Bair
>Bainbridge Island, WA
>http://claybair.com
>
>-----Original Message-----
>From: Ron Roy
>
>
>I have never dry mixed glazes before adding them to water - even those with
>bentonite or a lot of clay.
>
>Just a little slow stirring with a spoon or a scoop. I do always sieve
>twice through 80 mesh - which is where the real mixing happens.

Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513