Veena Raghavan on sun 2 mar 08
Hi Ron and John and anyone else who was interested in this glaze. I finally
got around to testing it. I got a very nice blue but no purple. I will test it
again.
John, I wonder what results you got?
Thanks Ron.
Veena
VeenaRaghavan@cs.com
Veena Raghavan on sun 2 mar 08
Sorry. Sending again, as I forgot to enclose the recipe.
Hi Ron and John and anyone else who was interested in this glaze. I finally
got around to testing it. I got a very nice blue but no purple. I will test it
again.
Here you go - let me know if it needs some adjustment - there is a lot more
raw clay but also some frit to help melt it - hard to tell if it will
balance out.
It's really close in all respects - I will be surprised if it's not a good
sub.
-----------------
F3134............... 27.00
TALC................ 3.00
WHITING............. 19.00
NEPH SY............. 6.00
EPK................. 19.50
SILICA.............. 25.50
----------
100.00
Tin Oxide - 5%
Chromium Oxide - 0.2%
For a consistent solid purple with slight lavender hue -
Add:
Cobalt oxide - 1%
FORMULA & ANALYSIS
------------------
*CaO........ .78 18.32%
MnO2....... .00 .01%
*MgO........ .07 1.10%
*K2O........ .01 .40%
*Na2O....... .15 3.83%
Fe2O3...... .00 .21%
TIO2....... .00 .07%
B2O3....... .24 7.05%
AL2O3...... .23 9.88%
SiO2....... 2.35 59.12%
P2O5....... .00 .03%
RATIO 10.17 (original is 10.16)
EXPAN 478.85 (original is 477.15)
WEIGHT 238.13
---
John, I wonder what results you got?
Thanks Ron.
Veena
VeenaRaghavan@cs.com
John Rodgers on mon 3 mar 08
Veena,
I have not worked with the RR revision yet. Maybe later. Kinda
snowballed with other things right now.
John Rodgers
Chelsea, AL
Veena Raghavan wrote:
> Sorry. Sending again, as I forgot to enclose the recipe.
>
> Hi Ron and John and anyone else who was interested in this glaze. I finally
> got around to testing it. I got a very nice blue but no purple. I will test it
> again.
>
> Here you go - let me know if it needs some adjustment - there is a lot more
> raw clay but also some frit to help melt it - hard to tell if it will
> balance out.
>
> It's really close in all respects - I will be surprised if it's not a good
> sub.
>
> -----------------
> F3134............... 27.00
> TALC................ 3.00
> WHITING............. 19.00
> NEPH SY............. 6.00
> EPK................. 19.50
> SILICA.............. 25.50
> ----------
> 100.00
> Tin Oxide - 5%
> Chromium Oxide - 0.2%
> For a consistent solid purple with slight lavender hue -
> Add:
> Cobalt oxide - 1%
>
> FORMULA & ANALYSIS
> ------------------
> *CaO........ .78 18.32%
> MnO2....... .00 .01%
> *MgO........ .07 1.10%
> *K2O........ .01 .40%
> *Na2O....... .15 3.83%
> Fe2O3...... .00 .21%
> TIO2....... .00 .07%
> B2O3....... .24 7.05%
> AL2O3...... .23 9.88%
> SiO2....... 2.35 59.12%
> P2O5....... .00 .03%
>
> RATIO 10.17 (original is 10.16)
> EXPAN 478.85 (original is 477.15)
> WEIGHT 238.13
> ---
>
> John, I wonder what results you got?
>
> Thanks Ron.
>
> Veena
>
> VeenaRaghavan@cs.com
>
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