Cone 04 Gerstley Borate matte base
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Code # L3523 |
| Materials | Amt |
|---|---|
| Gerstley Borate | 50.000 |
| EPK | 17.500 |
| Silica | 32.500 |
Total:100.00
Auto Unity Formula
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Si:Al: 11.6:1 6.0 (Molar:6.0) 17.3 Cost 0.17 per kg |
Notes
*This recipe is a common base for low temperature glazes (another common recipe is 50:20:30 vs this 50:17.5:32.5). Since this has such a high percentage of Gerstley Borate we are using it to compare different versions of Boraq.
Pictures
Flow test balls were 13 gms. each i
Flow test balls were 13 gms. each in weight.
L3523 Boraq Cone 04 Base Matte Recipe (boraq1) glaze cones
L3523 Boraq Cone 04 Base Matte Recipe (boraq1) glaze cones
Appear identical.
XML (to paste into Insight)
<?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cone 04 Gerstley Borate matte base" id="66083" key="zXiTx97Y" date="2023-04-10" codenum="L3523" picturebasename=""> <recipelines> <recipeline material="Gerstley Borate" amount="50.000" tolerance=""/> <recipeline material="EPK" amount="17.500" tolerance=""/> <recipeline material="Silica" amount="32.500" tolerance=""/> </recipelines> </recipe> </recipes>
Born: 2009-11-25, Modified: 2023-04-10 20:13:57
Compare Boraq 5 #1 with GB in a glaze
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Code # L3523A |
Notes
*This uses the Base L3523 low fire glaze recipe to compare L3127K Boraq 5 with other Boraq 1.
That recipe is 50 GB, 17.5 EPK, 32.5 silica.
Pictures
Cone 04 L3523 vs L3523A flow test
This uses the Base L3523 low fire glaze recipe to compare L3127K Boraq 5 with Boraq 1.
That recipe is 50 GB, 17.5 EPK, 32.5 silica.
Early melting and bubbling of Boraq 5 #1 (compared to Boraq 1) is evident on the right. Both are in the L3523 base glaze recipe.
XML (to paste into Insight)
Born: 2009-11-27, Modified: 2023-04-10 19:21:51
L3523 glaze using Boraq 5 L3127L
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Code # L3523B |
Notes
*This recipe has a closer flow to original L3523 recipe than L3523A did. Bubbling still present in glaze as shown in photo. This glaze did not settle as fast as did original L3523 recipe.
Pictures
L3523 vs L3523B Boraq 1 vs Boraq 5 in a cone 04 glaze
This uses the Base L3523 low fire glaze recipe to compare L3127L Boraq 5 with Boraq 1.
That recipe is 50 GB, 17.5 EPK, 32.5 silica.
Flow tester fired to cone 04.
XML (to paste into Insight)
Born: 2009-12-09, Modified: 2023-04-10 19:33:10
L3523 glaze using Boraq 5 L3127M
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Code # L3523C |
Notes
*Comparison of different (Donna Kinjo) L3523 glaze recipes, one using the L3523 glaze recipe containing Boraq 1 and the other is the L3523 glaze recipe using Boraq 5 adjustment 3, namingly L3127M.
Pictures
L3523 vs L3523C Boraq 1 vs Boraq in a cone 04 glaze
This uses the Base L3523 low fire glaze recipe to compare L3127M Boraq 5 with Boraq 1.
That recipe is 50 GB, 17.5 EPK, 32.5 silica.
Early melting and bubbling of Boraq 5 #1 (compared to Boraq 1) is evident on the right. Both are in the L3523 base glaze recipe.
L3523 vs L3523C glaze cones at cone 04
L3523 glaze cone glazed surface may feel slightly smoother to the touch than the L3523C glaze cone. Both glazes screened prior to use.
XML (to paste into Insight)
Born: 2010-03-02, Modified: 2023-04-10 19:33:25
L3523 recipe using Boraq 5 L3127N
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Code # L3523D |
Notes
*This uses the Base L3523 low fire glaze recipe to compare L3127N Boraq 5 with Boraq 1.
That recipe is 50 GB, 17.5 EPK, 32.5 silica.
We made glaze cones of L3523, L3523A-D and all looked identical and produced a silky matte.
Pictures
Sample wt. 13 grams. Fired cone 04
Sample wt. 13 grams. Fired cone 04 oxidation. Both samples appear to have the relatively same amount of glossiness, the L3523 sample perhaps just slightly glossier. L3523A sample has more material around outside edges of socket.
L3523 vs L3523D Boraq 1 vs Boraq 5 at cone 04
L3523 sample had just a slightly thicker application and was also slower to dry. There is more colour variation between the single and double dipped portions L3523D. L3523 sample has a slightly smoother surface whereas the L3523D sample has more instances of a pin-hole like surface that has healed over. The variation between the two samples is harder to observe on white clay.
L3523 vs L3523D Boraq 1 vs Boraq 5 in L3127N glaze
Alternate Code Number:GBL-1
XML (to paste into Insight)
Born: 2010-04-13, Modified: 2023-04-10 19:39:16
