Bob Hanlin on mon 3 oct 05
I have some of this stuff that I bought an eon or so ago. Now I want to use it and I've forgotton how to mix it. I assume that I use water but in what proportions.....
I intend to use it to make oxides flow better on clay or raw glaze..
Thanks
BobH
Eleanora Eden on wed 5 oct 05
Hi Bob and all,
Here are two posts from my archives on gum that seem to say it all.
Eleanora
On Wed, 13 Sep 1995, Richard Burkett wrote:
> I find the easiest way to dissolve CMC is to put about a heaping
> tablespoonful or so of it into a pint jar of HOT tap water, close the lid and
> shake it well. You can weigh the CMC, but keep the proportions of CMC to
> water to about this ratio. Leave just enough air space to get good agitation.
> Let it sit overnight, then shake it again. You should end up with a thick
> syrup-like mixture which can be added to the glaze.
I find this the best way to do it, you only need to plan ahead. Just one
warning, when you close that jar and shake it, the pressure will
increase! So, shake a little, open a little and let the air out,
repeat. I have had plastic containers with pop-on lids pop off and send
CMC everywhere..... the ceiling, the walls, the rug!!!!!
Dear Barbara
I put it in hot water and then put that in the microwave oven for about a
minute. You might need to let it cool before you use it, though.
Hope this helps.
Judy at Axner
>I have some of this stuff that I bought an eon or so ago. Now I
>want to use it and I've forgotton how to mix it. I assume that I
>use water but in what proportions.....
>
>I intend to use it to make oxides flow better on clay or raw glaze..
>
>Thanks
>
>BobH
>
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Linda Blossom on thu 6 oct 05
Hi Bob,
To a dry glaze, add aboutd 1%- and then sieve the glaze. To add to existing
glaze batches premix the cmc with water and use a blender to mix it and then
sieve it. It will be thicker than you expect so add more water until you
get it right. Mix it as thickly as possible so you don't have to add too
much water to the glaze. It will make the dry glaze stronger and will
prevent crawling. It is a must for me for single fired glazes - I find it
to be better than bentonite.
Linda
New York
: CMC Gum....
I have some of this stuff that I bought an eon or so ago. Now I want to use
it and I've forgotton how to mix it. I assume that I use water but in what
proportions.....
I intend to use it to make oxides flow better on clay or raw glaze..
Thanks
BobH
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