Logan Oplinger on mon 29 mar 04
On Mon, 29 Mar 2004 15:45:24 -0700, Llewellyn Kouba
wrote:
>I want to make a Tube-line Mix. The formula calls for as follows: But what
>is the frit # for a standard Borax frit and which # is an high alkaline
frit?
>
>Percentages given by weight:
>36% china clay
>36% quartz (interchangeable/ flint, silica)
>16 % ball clay
>4 % Whiting
>4 % standard borax frit
>4% high alkaline Frit
>
>Thank you
>Llewellyn Kouba
>Abbey Pottery
Hello Llewellyn,
There are more than one frit formulations for a high boron or a high alkali
content. Check what frits are available from your materials supplier.
Chances are that one of the more commonly available frits meet the
requirement for a borax frit or a high alkali frit.
A quick reference is the following table at Fusion Frits (no personal
affiliation):
http://www.fusionceramics.com/fritspec.htm
The component oxides are given in percentages, not equivalents.
Another source of info can be found at Digital Fire (no personal
affiliation):
http://digitalfire.ab.ca/cermat/material/f.html
Do a word find on the page for "alkali" or "boron".
Logan Oplinger
Another Pacific Island
Llewellyn Kouba on mon 29 mar 04
I want to make a Tube-line Mix. The formula calls for as follows: But what
is the frit # for a standard Borax frit and which # is an high alkaline frit?
Percentages given by weight:
36% china clay
36% quartz (interchangeable/ flint, silica)
16 % ball clay
4 % Whiting
4 % standard borax frit
4% high alkaline Frit
Thank you
Llewellyn Kouba
Abbey Pottery
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