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frit substitute

updated fri 30 mar 01

 

Ababi on thu 29 mar 01


I changed it for you through Insight:
I used American materials . The only one I have, in real life is
wollostonite. be aware that you have less kaolin you might have to add cmc
Tony Hansen's 20/5
=================
FRIT 3134........... 20.00 20.00%
CUSTER FELDSPAR..... 20.00 20.00%
EPK KAOLIN.......... 20.00 20.00%
WOLLASTONITE........ 20.00 20.00%
FLINT............... 20.00 20.00%
========
100.00

CaO 0.80* 14.99%
MgO 0.00* 0.02%
K2O 0.07* 2.20%
Na2O 0.13* 2.75%
TiO2 0.00 0.08%
Al2O3 0.33 11.42%
B2O3 0.20 4.79%
P2O5 0.00* 0.05%
SiO2 3.15 63.51%
Fe2O3 0.00 0.19%
Si:Al 9.44

SiB:Al 10.05
Expan 7.14


20/5...3124
===========
CUSTER FELDSPAR..... 18.64 18.64%
EPK KAOLIN.......... 11.96 11.96%
WOLLASTONITE........ 19.11 19.11%
FLINT............... 16.11 16.11%
FRIT 3124........... 34.18 34.18%
========
100.00

CaO 0.80* 15.02%
MgO 0.00* 0.01%
K2O 0.07* 2.25%
Na2O 0.13* 2.76%
TiO2 0.00 0.05%
Al2O3 0.33 11.39%
B2O3 0.20 4.79%
P2O5 0.00* 0.03%
SiO2 3.14 63.58%
Fe2O3 0.00 0.12%

Text1 14.00
Si:Al 9.48
SiB:Al 10.09
Expan 7.15

There might be of coares other ways to do it.
Ababi Sharon
ababisha@shoval.ardom.co.il
http://members4.clubphoto.com/ababi306910/

Hanne Bjorklund on thu 29 mar 01


I am using Tony Hansen's 5/20 glaze.

I would like to lower the expansion a bit so I put it through Insight with
frit 3124 instead of 3134, which did lower the expansion.

I know that Tony has listed a lower expansion version, (I have the recipe),
but I am curious to know what effect the above frit substitution will have
on the glaze and it's response to colouring oxides mainly iron, copper and
cobalt.

HANNE
bjorkund@clear.net.nz