Modification Date: 2019-05-26 09:56:08
Member of Group: RV10
Just Ravenscrag Slip plus 10% talc produces a visually variegated surface that feels silky and looks stunning!
|Ravenscrag Slip Raw||45.0|
|Ravenscrag Slip 1000F Roast||45.0|
This glaze is more silky (less matte) than the GR10-J glaze, it is more beautiful visually and to the touch than a photo can convey. It works well on both buff and dark stonewares and even porcelain. It would also be an excellent base for the addition of a zircon opacifier and of colors.
For mixing instructions please see the notes for the base GR10-A recipe.
GR10-C Ravenscrag cone 10R silky matte glaze closeup (on Plainsman H550 stoneware). The recipe is 90% Ravenscrag Slip (roast:raw combo) and 10% talc. The inside of this piece just has pure Ravenscrag (raw:roast).
Left two mugs are glazed with pure Ravenscrag Slip (roast:raw combo), far right one is RavenTalc silky matte (GR10-C). The speckled mugs have 10% of Plainsman FiredRed (a concretion-containing red fireclay).
Same body, same glaze. Left is cone 10 oxidation, right is cone 10 reduction. What a difference! This is a Ravenscrag-Slip-based recipe on a high-fire iron stoneware. In reduction, the iron oxide in the body and glaze darkens (especially the body) and melts much more. The behavior of the tin oxide opacifier is also much different (having very little opacifying effect in reduction).
Fired at cone 10R. The GR10-C Raven-Talc matte is just 90% Ravenscrag Slip and 10% talc. This produces a stunning silky, variegated surface (which could be a base for many colorants). The GR10-J Raven-Dolomite matte was patterned after our G2571A glaze, but using as much Ravenscrag Slip in the recipe as possible while maintaining the same chemistry (its surface is less variegated and more matte).
B-Mix is a popular high-ball clay very plastic grey cone 10R stoneware in North America. The two mugs on the left have pure Ravenscrag Slip on the inside (the middle on the outside also), it fires almost transparent with a slightly silky surface. Pure Alberta Slip is employed on the outside of the left one and the inside of the right one. The outside of the right one is RavenTalc silky matte. In all cases the Ravenscrag and Alberta Slip are mixed half-and-half calcined and raw. B-Mix fires dark enough and with enough specks that a normal transparent glaze is not very interesting. But these Ravenscrag ones look much better (for liner glazes).
Clay is Plainsman H450. The L3954N black engobe was applied at leather hard stage (on the insides and partway down the outside). The G1947U clear glossy glaze over it on the inside produces a deep and vibrant hue (left). The inside glaze on the right is GR10-C Ravenscrag silky matte. The outsides are GR10-J Ravenscrag Dolomite matte with a little added cobalt and iron (for blue and brown).
Out Bound Links
Plainsman Cone 6 Ravenscrag Slip based glaze. It can be found among others at http://ravenscrag.com.
2014-02-20 - This works well on Plainsman M340, but especially on a whiteware like M370. Produces an ivory white with some fleck. The surface is very silky, remini...
Ravenscrag all by itself makes a great cone 10 reduction semi-gloss glaze. It also has great working properties.
2003-12-19 - Ravenscrag Slip is a revolutionary glaze material for stoneware. At cone 10R it can be used pure and produces a functional semi-gloss surface. The pos...
In Bound Links
Plainsman Cone 10R Ravenscrag Slip based glaze. It can be found among others at http://ravenscrag.com.
2011-08-02 - This is the classic cone 10 reduction silky white matte, its feel, beauty and utility are very difficult to match in any other system. Unlike many fel...
A glaze that is not glossy. Of course, unmelted glazes will not be glossy, but to be a true matte a glaze must be melted and still not glossy. To be a functional matte it must also resist cultery marking, clean well and not leach into food and drink. Thus it is not easy to make a good matte glaze. I...
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<recipe name="Ravenscrag Cone 10R Silky Talc Matte" keywords="Just Ravenscrag Slip plus 10% talc produces a visually variegated surface that feels silky and looks stunning!" id="95" date="2019-05-26" codenum="GR10-C" altcodenum="G2852B">
<recipeline material="Ravenscrag Slip Raw" amount="45.000" unitabbr="kg" conversion="1.0000" added="0"/>
<recipeline material="Ravenscrag Slip 1000F Roast" amount="45.000" unitabbr="kg" conversion="1.0000" added="0"/>
<recipeline material="Talc" amount="10.000" unitabbr="kg" conversion="1.0000" added="0"/>
<url url="https://digitalfire.com/4sight/recipes/ravenscrag_cone_10r_silky_talc_matte_95.html" descrip="Recipe page at digitalfire.com"/>
By Tony Hansen