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GR6-F - Ravenscrag Cone 6 High Alumina Matte

Modified: 2019-03-13 15:03:11

Plainsman Cone 6 Ravenscrag Slip based glaze. It can be found among others at http://ravenscrag.com.

Material Amount Percent
Ravenscrag Slip*60.0056.1
Ferro Frit 3134*20.0018.7
Dolomite*10.009.3
Calcined Alumina*10.009.3
Cobalt Oxide*2.001.9
Rutile Ceramic*5.004.7
107.00

Notes

This is a high alumina matte glaze and is a favorite. It is not temperature sensitive and produces good results at cone 5, 6 and 7 (medium blue surface breaking an olive type green where thin). Most base glazes do not host alumina well and fire with pitting and uneven surface (alumina is very difficult to melt and dissolve). Be sure to use a smallest particle sized alumina you can find (it is available in very fine grades, much finer that the average ceramic material).

For mixing instructions please see the master recipe, GR6-A.

Ravenscrag glaze on Plainsman M340

Links

Firing Schedules Plainsman Cone 6 Electric Standard
Used in the Plainsman lab to fire clay test bars in our small kilns
Typecodes Ravenscrag Slip Recipes
Recipes based on Ravenscrag Slip from Plainsman Clays.
Typecodes Medium Temperature Glaze Recipes
Normally fired at cone 5-7 in electric kilns.
Recipes GR6-A - Ravenscrag Cone 6 Clear Glossy Base
This Plainsman Cone 6 Ravenscrag Slip base is just the pure material with 20% added frit to make it melt to a glossy natural clear.

XML to Paste Into Insight

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<recipeline material="Ravenscrag Slip" amount="60.000"/>
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<recipeline material="Dolomite" amount="10.000"/>
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<recipeline material="Cobalt Oxide" amount="2.000"/>
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By Tony Hansen


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