paul m wilmoth on tue 11 nov 97
--------- Begin forwarded message ----------
From: WPottery
To: jwalker@world.std.com
Cc: wpottery@juno.com
Subject: Re: ^6 glazes
Date: Mon, 13 Oct 1997 11:26:12 -0400
Message-ID: <19971013.112614.3534.3.WPottery@juno.com>
References: <199710062136.AA15937@world.std.com>
Hello to all interested in some ^6 info,
I am back home and now rested.
Before I list glaze recipes I will give you my two cents worth on
lowering the maturation point of glazes from ^10 to ^6.
*Stay with the same type of flux category - I was once told when I
started to just add a frit or some gerstley borate - this did lower the
melting temp. but it completely changed the characteristic of the glaze,
so if you are using feldspar use more of it or substitute part of the
feldspar with a frit that has the same elements.
*Lower the clay content and increase the feldspar or fluxes
*Switching from custer feldspar to neph. sy can lower the temp enough
with out significantly changing the glaze quality - this has always work
with shinos.
*If your glaze has an auxiliary flux , the replacement of 2-10% more of
the aux. flux for the clay content .
* At this point I would also like to emphasize that one is always safer
to do liquid line blends to cut down on the dust in the studio when
possible.
That is basically the methodology that I have used and it worked very
well. I also have mixed hundreds upon hundreds of glaze tests. Usually,
once that I found a base that had the quality that I liked I would do a
color run with oxides, stains and combinations.
Below you will see barium mattes, shinos, temmoku,calcium
mattes,celedons, ash, lithium mattes, and magnesium mattes.
I would also like to site information and assistance from John
Stephenson, Tom Dimig and Larry Bush. I also would like to say that
although some of these glazes are my own origination not all are. Good
Luck!!
bests regards - Paul Wilmoth
O=oxidation
R=reduction
golden ash O/R Float blue O
red art 26 neph sy 47
dolomite 23 ger bor 27
ball clay 20 epk 5
barium 6 red iron 2
bone ash 5 co. ox. 1
lithium 2 rutile 4
ger. bor. 8 bent 3
matt base O/R shino #1 R
neph sy 32 spodumene 15.4
whiting 24 neph sy 64.1
zinc 8 soda ash 4
epk 12 ball clay 16.5
flint 24
white=add 10%zirco
shino#2 R KP Ash R
neph sy 56
spod 15 wood ash 50
epk 10 red art 50
ball 15 whiting 15
soda ash 4 ger bor 10
celedon R Fat white R looks like cottage cheese
pot spar 62.2 neph sy. 60
whiting 7.6 mag. carb 22
ksolin 7.6 lithium 5
flint 25.6 ball 7
Red Iron 1.5 flint 6
barium base O/R Temmoku R
neph sy 60 custer spar 34
barium 22 whiting 17
lithium 5 epk 8
ball 7 silica 41
flint 6 red iron 10%
tomato red O/R calcium matt R
soda spar 36 soda spar 36
dolo 17 dolo 17
talc 3 talc 3
bone ash 9 bone ash 9
ball 8 ball 8
flint 27 flint 7
red iron 12% kaolin 9
brick red - add :10% red iron , 3% pras. stain
white - add 9% ultrox
green blue - co 1/2%, rutile 3%, chrome 1%
yellow - rutile 3%, copper carb 1%
Magnesium base R
Mag. carb 6 Trout O/R
whiting 22
custer spar 32 neph sy 49
epk 18 whiting 15
flint 22 epk 12
silica 23
mag. carb. 1
frit 3134 10
copper ox. 7%
spodumene
custer spar 35 Susans Matt
spodumene 25
dolo 27 soda spar 51
kaolin 11 whiting 19
whiting 2 flint 18
tin 6% 6tile kaolin 9
wollastonite 3
Reeve base adjusted
neph sy 75 Wood ash
whiting 15
silica 5 wood ash 26
kaolin 5 neph sy 26
bent 3% whiting 20
ger bor 14
barium carb. 10
epk 2
bent 2
matt
spodumene 38 Black matt
custer spar 12
whiting 19 soda spar 46
flint 29 whiting 8
bent 2 zinc ox. 4
dolo 6
ger bor 14
flint 20
epk 2
bent 3
add: co.ox 3%, chrome 1%, iron 4%,
manganese diox. 1%, nickel 1.5%
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