Ravenscrag Cone 6 Oatmeal
|
Code # GR6-H |
| Materials | Amt |
|---|---|
| Ravenscrag Slip | 60.000 |
| Calcined Alumina | 10.000 |
| Dolomite | 10.000 |
| Ferro Frit 3134 | 20.000 |
| Additions | |
|---|---|
| Manganese Dioxide | 4.000 |
| Rutile | 5.000 |
| Illmenite Granular | 0.300 |
Total:109.30
Auto Unity Formula
|
Si:Al: 4.4:1 7.5 (Molar:7.3) 10.0 Cost 0.03 per kg |
Notes
*Do not apply too thick, best thin to medium thickness.
If it cracks on drying consider using a mix of 1000F roasted and raw Ravenscrag Slip (e.g. 40 raw, 20 roast), or add a little CMC gum.
Originally G2851D Kats Matte #t variation.
Pictures
GR6-H varying thickness at cone 6
Ravenscrag Cone 6 Oatmeal plate
Ravenscrag Oatmeal at cone 5R
Typecodes
ST-Untitled typecode
Alternate Code Number:MRG6H
XML (to paste into Insight)
<?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Ravenscrag Cone 6 Oatmeal" id="64160" key="zGkA2mCF" date="2022-12-19" typecodes="ST" codenum="GR6-H" picturebasename=""> <recipelines> <recipeline material="Ravenscrag Slip" amount="60.000" tolerance=""/> <recipeline material="Calcined Alumina" amount="10.000" tolerance=""/> <recipeline material="Dolomite" amount="10.000" tolerance=""/> <recipeline material="Ferro Frit 3134" amount="20.000" tolerance=""/> <recipeline material="Manganese Dioxide" amount="4.000" added="true"/> <recipeline material="Rutile" amount="5.000" added="true"/> <recipeline material="Illmenite Granular" amount="0.300" added="true"/> </recipelines> </recipe> </recipes>
Born: 2004-11-02, Modified: 2022-12-19 20:18:58
Alberta Slip Cone 6 Oatmeal
|
Code # GA6-F |
| Materials | Amt |
|---|---|
| Alberta Slip | 40.000 |
| Ferro Frit 3134 | 20.000 |
| Alberta Slip 1000F Roasted | 40.000 |
| Additions | |
|---|---|
| Rutile | 5.000 |
| Titanium Dioxide | 3.000 |
Total:108.00
Auto Unity Formula
|
Si:Al: 7.0:1 8.2 (Molar:7.7) 4.9 |
Notes
*5% rutile is the practical limit, it mattes drastically after that. Perhaps better with 4%. If pitting occurs try reducing the titanium to 2.
Pictures
Alta Slip Oatmeal at cone 6 without slow cool
GA6F Alta Slip Oatmeal
GA6F Alta Slip Oatmeal at cone 5R
Alta at 5R.
GA6-F brushing version
No roasted Alberta Slip was needed since it contains CMC gum.
675 powder, 100 Laguna gum solution, 380 water. Next time use more water and add enough Veegum to gel it as needed.
Alternate Code Number:MA6F
XML (to paste into Insight)
<?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Alberta Slip Cone 6 Oatmeal" id="70045" key="cLyndQgW" date="2022-12-19" codenum="GA6-F" picturebasename=""> <recipelines> <recipeline material="Alberta Slip" amount="40.000" tolerance=""/> <recipeline material="Ferro Frit 3134" amount="20.000" tolerance=""/> <recipeline material="Alberta Slip 1000F Roasted" amount="40.000" tolerance=""/> <recipeline material="Rutile" amount="5.000" added="true"/> <recipeline material="Titanium Dioxide" amount="3.000" added="true"/> </recipelines> </recipe> </recipes>
Born: 2010-06-09, Modified: 2022-12-19 20:30:29
G2934:G2926B Oatmeal - Cone 6
|
Code # G3933 |
| Materials | Amt |
|---|---|
| G2934 Matte Glaze (G2934) | 75.000 |
| G2926B Glossy Glaze (G2926B) | 25.000 |
| Additions | |
|---|---|
| Red Iron Oxide | 1.000 |
| Tin Oxide | 5.000 |
| Rutile | 1.200 |
Total:107.20
Auto Unity Formula
|
Si:Al: 6.8:1 5.9 (Molar:5.9) 11.3 Cost 9.47 per kg |
Notes
*We have improved this recipe, please see the one for G3933EF. That new Ravenscrag Slip based version has many advantages.
This came from someone targeting the "fake Shino" effect in the Mid-Range Glazes book by John Britt. He transplanted the mechanism (the iron, rutile and tin oxide) into our G2934 matte base (with help from the G2926B glossy). While the effect fails as a shino it does produce a nice oatmeal (a standard among middle-temperature potters).
We have mixed it as both a dipping and brushing glaze and used it for a couple of years. It works especially well on dark bodies. However it does have issues with crawling, many pieces have to be touched up and retired (refining does work well).
The richest color and best surface is achieved with a slow cool firing.
Pictures
G3933 original photo from customer
The original photo, from the customer, of the glaze shivering on a black-burning body provided the motivation to try it. We were not able to duplicate the shivering, it fits all the bodies we have tried so far.
G3933 on Coffee clay, M340, M340GS
No sign of shivering out of the kiln or after iceboater:boiling water test. Our results look quite different. Using the C6DHSC firing schedule.
G3933 Oatmeal on M390 at Cone 5 slow cool
Using the C5DHSC firing schedule.
XML (to paste into Insight)
<?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G2934:G2926B Oatmeal - Cone 6" id="208086" key="ZTjnE7Br" date="2024-03-13" codenum="G3933"> <recipelines> <recipeline material="G2934 Matte Glaze" lookup="G2934" amount="75.000" tolerance=""/> <recipeline material="G2926B Glossy Glaze" lookup="G2926B" amount="25.000" tolerance=""/> <recipeline material="Red Iron Oxide" amount="1.000" added="true"/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.200" added="true"/> </recipelines> </recipe> </recipes>
Born: 2021-10-27, Modified: 2024-03-13 18:46:07
G2934:G2926B Oatmeal Cone 6
|
Code # G3933A |
| Materials | Amt |
|---|---|
| G2934 Matte Glaze (G2934) | 80.000 |
| G2926B Glossy Glaze (G2926B) | 20.000 |
| Additions | |
|---|---|
| Red Iron Oxide | 1.500 |
| Tin Oxide | 5.000 |
| Rutile | 1.500 |
Total:108.00
Auto Unity Formula
|
Si:Al: 6.6:1 5.9 (Molar:5.9) 11.9 Cost 9.52 per kg |
Notes
*This is no longer recommended this recipe for this color. We have found that it is too prone to crawling and it does not interact enough with darker bodies. The G3933EF is better in every way.
This was an adjustment to our original G3933 for a little more matteness and a little more variegation (this has more iron, more G2934, more rutile.
The original theory behind this recipe was to be able to tune the desired matteness by adjusting a mix our base matte and glossy glazes.
For each 1000 powder we use 930 water (increasing as needed). This produces a creamy slurry that worked very well.
Pictures
G3933 vs G3933A at cone 6
Using the C6DHSC schedule.
G3933A cone 5
Using the C5DHSC firing schedule.
G3933A cone 5 on L4484D black porcelain
Using the C5DHSC firing schedule.
G3933A G2934:G2926B Oatmeal on dark, light body
Standard cone 6 C6DHSC firing schedule on M390, M340.
G3933A On M340, Coffee clay
Drop and soak, 250c/hr down to 1400C.
XML (to paste into Insight)
<?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G2934:G2926B Oatmeal Cone 6" id="211015" key="97ohsLRn" date="2024-03-13" codenum="G3933A"> <recipelines> <recipeline material="G2934 Matte Glaze" lookup="G2934" amount="80.000" tolerance=""/> <recipeline material="G2926B Glossy Glaze" lookup="G2926B" amount="20.000" tolerance=""/> <recipeline material="Red Iron Oxide" amount="1.500" added="true"/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.500" added="true"/> </recipelines> </recipe> </recipes>
Born: 2021-10-27, Modified: 2024-03-13 18:03:42
