iandol on fri 17 may 02
Dear Jim V Brooks
If your add Hydrochloric acid, aka Muriatic Acid, to a glaze mixture =
which has Whiting, limestone or any other form of Calcium carbonate, or =
any other carbonates in it you will get a reaction, lots of bubbles and =
create Calcium and/or other chlorides which will dissolve in the water.
Try Vinegar.
Best regards,
Ivor Lewis. Redhill, South Australia.
WHC228@AOL.COM on sat 18 may 02
Dear Jim Brooks:
Probably the easiest flocculant for glaze is Epsom salts. Dissolve some in
warm water and add it slowly in small increments to the glaze. Glazes with
sodium feldspars like kona f4 or neph sy will begin to deflocculate over
time
and need to be doped with Epsom salts, and sometimes will over deflocculate
your glaze and become thixotropic. When that happens you will need something
like sodium silicate to bring it back.
By using a flow tube and a stopwatch you can get an idea what is happening
to
the glaze. It will also give you a way to make it the same way every time
once you get it right, assuming that the specific gravity remains constant.
Bill
Jim V Brooks on sat 18 may 02
Got a lot of response to my question about using muratic acid as a
flocculant.. Instead of trying to send a thank you to everyone.. Please
accept this. thanks..
I will try some of the other "flocculants" also..Thanks Again.. Jim in
Denton.
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