{"id":95,"date":"2009-05-08T09:41:09","date_gmt":"2009-05-08T13:41:09","guid":{"rendered":"http:\/\/nanrothwellpottery.com\/wordpressblog\/?page_id=95"},"modified":"2022-04-06T16:56:10","modified_gmt":"2022-04-06T20:56:10","slug":"glazes","status":"publish","type":"page","link":"https:\/\/nanrothwellpottery.com\/?page_id=95","title":{"rendered":"Glaze Recipes"},"content":{"rendered":"

Current Glazes in Use<\/strong><\/h2>\n

Notes on Glazing<\/a> – A handout on glazing.\u00a0 Below are the recipes currently in use.\u00a0 The salt kiln is fired to cone ten with a neutral atmosphere.\u00a0 The stoneware kiln also goes to cone ten, with a variable reduction schedule, depending on the predominant glazes in the stack.\u00a0 (I do a HEAVY early reduction for shino firings, otherwise I follow a pretty standard cycle.)<\/strong><\/p>\n

Resources on Glazing<\/a> – A listing of resource materials I have found helpful in learning about glazing, plus information on how to have glazes tested for safety.
\n<\/strong><\/p>\n

Cone Ten Reduction Glazes<\/strong> formulated for use on bisque pots<\/h2>\n

Shaner Red<\/strong> \u2013 formulated by David Shaner\u00a0 (I got this version from Elizabeth Krome)<\/em>
\n527 Potash Feldspar
\n40 Talc
\n250 Kaolin
\n40 Bone Ash
\n213 Whiting
\n60 Red Iron Oxide
\n2% Bentonite<\/p>\n

Ken’s Black<\/strong> – Ken Fischer found this recipe in an old Ceramics Monthly<\/em>
\n68 Alberta Slip
\n32 Neph Synite
\n4.5% Cobalt Carbonate<\/p>\n

Chots\u2019 Chun<\/strong> \u2013 formulated by Chots Levenson<\/em>
\n7.73 Ball Clay (OM4)
\n30.96 Custer Spar
\n14.01 Wood Ash
\n31.54 Silica (200 mesh)
\n13.11 Whiting
\n2.65 Talc
\nRed Iron Oxide .75%
\nBentonite 2%<\/p>\n

Notes: Versatile, mixes well with other glazes. Fires in wide temperature & atmosphere range, but looks best in strong heat and reduction.<\/p>\n

Chots\u2019 Blue Ash<\/strong> \u2013 formulated by Chots Levenson<\/em>
\n6.8 Ball Clay (OM4)
\n27.3 Custer Spar
\n18.7 Wood Ash
\n33.6 Silica (200 mesh)
\n13.6 Whiting
\nRed Iron Oxide .75%
\nCobalt Carb .35%
\nManganese .25%
\nBentonite 2%<\/p>\n

Saturated Iron Res Red Glaze<\/strong> \u2013 formulated by Chots Levenson<\/em>
\n5.2 Ball Clay (OM4)
\n8.77 Dolomite
\n56 G-200 Feldspar
\n7 Silica (200 Mesh)
\n15.8 Bone Ash
\n7 Red Iron Oxide
\nBentonite 2%<\/p>\n

Silky Grey<\/strong> \u2013 formulated by Chots Levenson<\/em>
\n6.3 Gerstley Borate
\n5.6 Dolomite
\n50.9 Neph Sy
\n3.9 Kaolin
\n15 Talc
\n18.3 Silica (200 mesh)
\nbentonite 2%<\/p>\n

Colonial Green<\/strong> \u2013 from Chuck Brome<\/em>
\n43.0 G-200 Feldspar
\n12.5 Gerstley Borate
\n21.0 Dolomite
\n4.7 EPK
\n19.0 Silica
\nPlus .16% (.0016) Chrome Oxide
\n.33% (.0033) Cobalt Carbonate
\n1% Bentonite<\/p>\n

Sand Matte<\/strong> \u2013 from John Britt’s The Complete Guide to High-Fire Glazes<\/em>
\n40\u00a0 Feldspar (I use Custar)
\n25 EPK
\n30 Dolomite
\n5 Natural Bone Ash
\n3% Bentonite<\/p>\n

White Glaze<\/strong> – formulated by Chots Levenson<\/em>
\n7.8 OM4 Ball Clay
\n20.6 Silica
\n12.4 Gerstley Borate
\n44.1 F-4 Feldspar
\n15.1 Talc
\n2% Bentonite<\/p>\n

Carbon Trap Orange Shino<\/strong> \u2013 from Studio Pottery Magazine June 2002<\/em>
\n40.0 Neph Synite
\n15.0 OM4
\n13.0 F4 Soda Spar
\n12.0 Soda Ash
\n8.0 EPK
\n9.0 Spodumene
\n3.0 Cedar Heights Redart
\n(I add 2% Bentonite \u2013 not in original recipe)<\/p>\n

Penn State Shino<\/strong> \u2013 from Liz Willoughby<\/em>, cited in Studio Pottery Magazine June 2002<\/em>
\n14.6 Neph Synite
\n7.8 Soda ash
\n9.7 EPK (I use Avery Kaolin)
\n14.9 OM4
\n34.0 F4 Soda Spar
\n29.0 Spodumene<\/p>\n

Notes: I initially transcribed this recipe incorrectly from the magazine, with the OM4 at 14.9 instead of the original 4.9. Having tried it both ways, I prefer the higher clay version. It requires a very hot, dirty firing to look good, but also it holds up well in multi-day super hot wood kilns.<\/p>\n

Shino Ash Wash <\/strong>\u2013 from Sylvia Dales<\/em>
\n70 Potash Feldspar (G-200)
\n30 Wood Ash
\nBentonite 2%<\/p>\n

Notes: Used as VERY thin wash, dipped, brushed or sprayed over shino, this mix promotes carbon trapping and can give the look of wood firing.<\/p>\n

Salting Slips \u2013<\/strong> formulated for cone ten salt firing – apply to leather hard exteriors or to bisqued work by spraying, dipping, or brushing.<\/h2>\n

A = Avery Orange<\/strong> — from Ruggles\/Rankin<\/em>
\n80 Avery
\n20 Neph Synite
\n2% Bentonite<\/p>\n

B = Nan\u2019s Brown<\/strong>
\n3 Dolomite
\n30 Red Art
\n33 Kaolin (I use Avery)
\n33 G-200 Feldspar
\n2% Bentonite<\/p>\n

C = Nan\u2019s Brown <\/strong>(Avery plus Newmans Red<\/em>)
\n80 Avery
\n20 Neph Synite
\n16% Newmans Red
\n2% Bentonite<\/p>\n

D = Micki\u2019s Brown<\/strong> – from Micki Schloessingk<\/em>
\n62.5 Grolleg Kaolin
\n12.5 Custar Feldspar
\n12.5 Silica
\n12.5 Red Art Clay
\n8% Tin
\n2% Bentonite<\/p>\n

E = Nan\u2019s Blue<\/strong> \u2013 originally from Mary Nyberg with alterations by Nan<\/em>
\n25 Neph Synite
\n20 Ball Clay
\n20 Kaolin
\n30 Silica
\n5 Murray\u2019s Borate (a gerstley borate substitute from Kickwheel Pottery Supply)
\n2% Cobalt Carbonate
\n3.5% Bentonite<\/p>\n

G = Nan\u2019s Blue\/Black Slip<\/strong> (not reliable on bisque<\/em>)
\n32 Kaolin
\n43 G-200 Feldspar
\n20 Redart Clay
\n5 Dolomite
\n1% Rutile
\n1% Cobalt carbonate
\n2% Bentonite<\/p>\n

H = Toff\u2019s Blue Slip<\/strong> \u2013 from Toff Milway<\/em>
\n25 Ball Clay
\n25 Potash Feldspar
\n25 Soda Feldspar
\n25 Silica
\n1% Cobalt Oxide
\n1% Red iron Oxide
\n.5% Manganese
\n2.5% Bentonite<\/p>\n

J = Brown<\/strong> – originally from Ben Little<\/em>
\n24 EPK \/ Kaolin
\n24 Ball Clay (I use OM4)
\n24 Silica
\n12.5 Custar Feldspar
\n12.5 Nepheline Syenite
\n3 Frit 3195
\n2% Bentonite
\nPlus 15% Newmans Red<\/p>\n

Interior Liner Glazes<\/strong> for Salt (can be applied raw, leather-hard pots)<\/h2>\n

Apple Green Celadon<\/strong> \u2013 modified by Nan from a recipe in Harrow glaze book<\/em>
\n29.5 Potash Feldspar (Custar)
\n22.3 Silica (200 mesh)
\n14.8 Whiting
\n14.8 China Clay (EPK)
\n7.5 Red Clay
\n11.1 Talc
\nRed Iron Oxide 1%
\nBentonite 2.5%<\/p>\n

Note: This is my standard glaze for salt interiors. It works in a broad temperature range (8-11), raw glazes well on interiors, and also works on bisque.<\/p>\n

Variations on Apple Green Celadon<\/strong><\/p>\n

Kathy’s Green\u00a0 – formulated by Kathy Knowles<\/strong>
\nBasic Apple Green Celadon recipe with added 2% of Mason Stain 6226 (dark leaf green) and 1% Mason Stain 6242 (Bermuda green).<\/p>\n

Becky’s Green – formulated by Becky Garrity<\/strong>
\nBasic Apple Green Celadon recipe with added 1% Mason Stain 6226 (dark leaf green) and 3% Mason Stain 6242 (Bermuda green).<\/p>\n

Albany Slip<\/strong>
\nI’ve always used Albany Slip as a liner glaze in salt. As I have neared the end of my \u201clifetime supply\u201d I have begun to search for alternatives to it. Below, I provide two substitute recipes for Albany. There is also a new slip clay available called Ohio Slip that seems to be a close match to the original Albany. It\u2019s sold by Pam Adkins of A&K Clay 937-379-1495 or www.akclay.com My early tests suggest that it looks good in salt but seems to be slightly more refractory than the original stuff.<\/em><\/p>\n

Substitute Recipe for Albany<\/strong> – liner glaze formulated using GlazeChem software<\/em>
\n59 Redart clay
\n28 Custar Feldspar
\n10 Dolomite
\n3 Whiting
\nRutile .5%
\nRed Iron Oxide 1%
\nBentonite 2%<\/p>\n

Substitute Recipe for Albany<\/strong> \u2013 formulated by Chots Levenson<\/em>
\n15 Dolomite
\n50 RedArt or other Red Clay
\n35 Custar Feldspar
\n1% Titanium
\n2% Bentonite<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Current Glazes in Use Notes on Glazing – A handout on glazing.\u00a0 Below are the recipes currently in use.\u00a0 The salt kiln is fired to cone ten with a neutral atmosphere.\u00a0 The stoneware kiln also goes to cone ten, with … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":6,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-95","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/pages\/95","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=95"}],"version-history":[{"count":29,"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/pages\/95\/revisions"}],"predecessor-version":[{"id":2266,"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=\/wp\/v2\/pages\/95\/revisions\/2266"}],"wp:attachment":[{"href":"https:\/\/nanrothwellpottery.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=95"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}