623-pages-of-glaze-recipes-from-lindaarbuckle-dotcom

Host Bill van Gilder shares a few recipes for creating his favorite pottery glazes These glaze recipes will work for cone to cone firings Sieve each batch twice through an 80-mesh screen A 10,000-gram dry weight batch will fill a five-gallon bucket when added to water Amber A glossy semi-transparent glaze Root beer color on brown clays; yellow amber on white clays Good when applied over white slip Custer feldspar 2849 grams Whiting 2415 Edgar’s Plastic Kaolin 711 Silica (325 mesh) 3439 Red iron oxide 1097 Rutile Green A glossy opaque glaze Best if applied thin All-over light green if applied thick Ron Roy base glaze recipe with oxide additions Good when applied over or under Teal Blue glaze (All measurements are in grams.) Custer feldspar 2200 Whiting 400 Talc 500 Ferro Frit (#3134) 2600 Edgar’s Plastic Kaolin 1700 Silica (325 mesh) 2600 Bentonite 100 Rutile (powdered) 600 Copper carbonate 400 Oribe Green A pale to deep grass green, glossy glaze Best when applied on white or light tone clay bodies Good when applied over white slip Cone to cone 10 (All measurements are in grams.) Custer feldspar 3200 Whiting 2400 Silica (325 mesh) 2400 Kaolin (Tile #6) 1200 Zinc oxide 800 Copper carbonate 400 Teal Blue A semi-gloss opaque glaze Good when applied over or under Rutile Green glaze (All measurements are in grams.) Custer feldspar 2000 Edgar’s Plastic Kaolin 2000 Ferro frit 3124 2000 Wollastonite 2000 Silica (325 mesh) 2000 Cobalt carbonate 100 Chrome oxide 50 Cream Rust A semi-gloss opaque cream-breaking-rust glaze Good over textured surfaces Apply thin rather than thick (All measurements are in grams.) Custer feldspar 2660 Strontium carbonate 330 Ferro frit (#3134) 3060 Wollastonite 1060 Silica (325 mesh) 1820 Edgar’s Plastic Kaolin 840 Talc 230 Red iron oxide 600 Tin oxide 1300 Glossy Black A glossy, very black, opaque glaze Ron Roy base glaze recipe with oxide additions (All measurements are in grams.) Custer feldspar 2200 Whiting 400 Talc 500 Ferro frit #3134 (2600 grams) Edgar’s Plastic Kaolin 1700 Silica (325 mesh) 2600 Bentonite 100 Cobalt carbonate 100 Red iron oxide 900 filetype = GlazeChem Glazes version = dbname = Mid-Range I = |Imported 11 glazes from C:\Documents and Settings\Linda Arbuckle\My Documents\GlazChem\Feb 07 update2.txt name = 1213P Calcium Matte index = date = 6/3/96 source = type = range = firetype = color = vistexture = quality = matte transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Wollastonite amount = 33.9 component = Ferro frit 3134 amount = 21.1 component = Kaolin amount = 45 note = |Smooth, beautiful matte surface submitted by: Michelle Campbell note = |e-mail: Lackacreek@ccinet.ab.ca source for original recipe: Plainsman note = |Clays name = 1213P Calcium Matte calc problem index = date = 6/3/96 source = type = range = firetype = color = vistexture = quality = matte transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Wollastonite amount = 36.6 component = Gerstley borate amount = 10.7 component = Kaolin - theoretical amount = 35.1 component = Custer feldspar amount = 16.4 component = Silica amount = 0.04 note = |Smooth, beautiful matte surface submitted by: Michelle Campbell note = |e-mail: Lackacreek@ccinet.ab.ca source for original recipe: Plainsman note = |Clays name = 2nd Edition Indian Red index = date = 4/21/95 source = type = Iron Saturate range = firetype = Ox or Red color = iron red brown vistexture = quality = Semi-gloss transparency = Opaque xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Potash feldspar amount = 40 component = Zinc oxide amount = component = Dolomite amount = component = Whiting amount = 15 component = China clay amount = component = Silica amount = 33 addition = chrome oxide addamount = 0.5 addition = Red iron oxide addamount = 4 note = |In oxidation at cone a deep red iron oxide red In reduction at note = |cone a deep brown with a slight green tint at close inspection note = |source for the original recipe: Emmanuel Coopers Glaze books note = |submitted by: J.D e-mail: CLAYJUNKIE@AOL.COM name = 5-20's Tony Hansen index = date = 4/3/98 source = type = range = - firetype = oxidation color = clear vistexture = quality = glossy transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = EPK amount = 20 component = Custer feldspar amount = 20 component = Wollastonite amount = 20 component = Frit 3134 amount = 20 component = Flint amount = 20 note = |Chemical Analysis Na2O 0.14 Al2O3 0.38 SiO2 3.44 K2O 0.07 B2O3 0.22 note = |MgO 0.02 CaO 0.76 Alumina:Silica ratio is 1.00 : 9.08 Neutral:Acid note = |ratio is 1.00 : 5.75 Alkali:Neutral:Acid ratio is 1.00 : 0.60 : 3.44 note = |Expansion coefficient: 69.2 x 10e-7 per degree C Oxides causing note = |abnormal expansion effects: B2O3 John Post jp6mchp@moa.net Sterling note = |Heights, Michigan name = index = date = source = type = range = firetype 974 Kawai Celadon 3/26/96 Celadon - = Reduction color = Translucent Green vistexture = quality = shiny glossy transparency = Transparent xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Potash feldspar amount = 62.24 component = Whiting amount = 7.61 component = China clay amount = 4.97 component = Silica amount = 25.18 addition = Black iron oxide addamount = 1.52 note = |Original recipe called for limestone, substituted whiting, although note = |using dolomite might be better Add 2% Barium Carbonate for bluish note = |celadon Also can substitute red iron oxide for the black to get a note = |yellow green celadon submitted by: GURUSHAKTI@aol.com name = Albany Black index = date = 6/4/96 source = Val Cushing VC ed type = Ca Mg SlipGlaze range = - firetype = Ox or Red color = black vistexture = quality = Semi-gloss transparency = Opaque xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Albany Slip amount = 75 via GlazeBase component = Nepheline syenite amount = 20 component = Gerstley borate amount = addition = Cobalt oxide addamount = note = |Albany sub.= Yellow Banks Red #101 + Whiting 14% approx + Dolomite note = |2-3% approx name = Alfred Spodumene B.J index = date = 6/4/96 source = Val Cushing VC ed via GlazeBase type = Ca Mg AlMatt range = firetype = Reduction color = Tan/Brown/White vistexture = quality = Matt transparency = Opaque xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Kona F-4 feldspar amount = 20 component = Custer feldspar amount = 20 component = Spodumene amount = 20 component = Dolomite amount = 20 component = Whiting amount = component = Kaolin amount = 15 addition = Tin oxide addamount = note = |This is the Alfred Spodumene glaze revised to C/6 name = Almond St Helens index = date = 6/24/97 source = type = Zinc matt range = firetype = Oxidation color = almond yellow vistexture = quality = Satin matt transparency = Opaque xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Custer spar amount = 40 component = Zinc oxide amount = 8.6 component = Whiting amount = 14.9 component = EPK amount = 11.8 component = Flint amount = 4.7 component = Volcanic ash - Mt St Helens amount = 20 addition = Rutile addamount = note = |here are two glazes I have used successfully but not put thru any note = |analysis I got them at an art studio where I used to take classes note = |They are better if layered with other glazes Wendy Hampton note = | from Bainbridge Island WA note = |Also see Blue St Helen's name = Amber index = date = 10/06/2002 source = type = range = 6-8 firetype = Oxidation color = Amber vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Custer feldspar amount = 30.27 component = Whiting amount = 25.65 component = Silica amount = 36.53 component = EPK amount = 7.55 addition = Red iron oxide addamount = 11.66 note = |Clay Times May/June 2002 Root beer color on iron-bearing clays Golden yellow on white clays Layers well with oribe green on top or bottom Good base for other oxide combinations name = Amber Ash Glaze index = date = 6/3/96 source = type = Ash range = firetype = Oxidation color = Amber vistexture = quality = gloss transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Cedar Heights Redart amount = 40 component = Ferro frit 3124 amount = 30 component = Ash wood amount = 30 addition = Rutile addamount = var = |Add 3% cobalt for a perfect Black Tested on Dillo White clay at a var = |full ^6 note = |I used sieved unwashed fireplace ash An excellent honey gold gloss note = | submitted by: Lori Wilkinson e-mail: lorwilk@lookingglass.net name index date source type range = Amber Brown Dark Rich = = 08/03/2003 = = = firetype = Oxidation color = Brown vistexture = quality = transparency = Translucent xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Gerstley borate amount = 46.7 component = EPK amount = 22.9 component = Flint amount = 30.4 component = Bone ash amount = 0.2 addition = Red iron oxide addamount = 10 var = |refire to cone 08 for opaque rust name = Amber Honey index = date = 8/8/97 source = type = range = - firetype = color = Amber vistexture = quality = glossy transparency = xtals = Small bubbles = Some flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Dolomite amount = 20 component = Ferro frit 3134 amount = 20 component = Spodumene amount = 20 component = Kentucky OM #4 10 vistexture = quality = stony slip or engobe transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = A.P Green fireclay amount = 70 component = Cedar Heights Goldart amount = 20 component = Ball clay amount = 10 note = |I've applied them to bone dry sculptural work, bisqued them and then note = |have rubbed stains or oxides into the recesses, sponging off, then note = |fired again for permanence They are quite versatile These recipes note = |are from Zakin's book on Electric Kiln Ceramics Some of the clays note = |used in the recipe are coarse and the slip should not be strined The note = |result will be a coarse, sandy-textured surface, not for functional note = |pieces They may be applied by dipping, spraying or brushing They note = |may be applied to greenware or bisqued ware They may be used alone note = |or with stains and glazes The appearance when fired is soft and note = |sandy Candice Roeder name = White Paul's index = date = 6/24/97 source = type = range = firetype = color = white vistexture = quality = transparency = Semi-opaque xtals = bubbles = flow = durability = flaws = tested = imagefile = 606 notefile = limform = by_vol = n batchsize = component = Gerstley borate amount = 15.7 component = Talc amount = 8.6 component = Whiting amount = 12 component = Custer feldspar amount = 43 component = EPK amount = 8.6 component = Flint amount = 12.1 addition = Zircopax addamount = 8.1 note = |There's a White that i tested from Ceramics Monthly Answers to note = |Potters Questions I have done tests with it but haven't used it yet note = |on anything major It appeared to be something I would like I want note = |to work more with it when I get the time Cheryl Fisher Sarasota, FL note = |cfisher995@aol.com name = white Satin Matt L A index = date = 11/15/98 source = type = Zinc matt range = firetype = Ox or Red color = White vistexture = quality = Satin Matte transparency = Opaque xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kona F-4 feldspar amount = 60.2 component = Flint amount = 5.8 component = Whiting amount = 18.2 component = Zinc oxide amount = 10 607 component = EPK amount = 5.8 addition = Opax addamount = note = |From a University of Georgia class handout on glaze & clay from Andy note = |Nasisse A variation on L.A Matt name = White Slip Glaze index = date = 11/15/98 source = type = range = - firetype = Ox or Red color = white vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kaolin amount = 36.4 component = Frit 5301 amount = 54.5 component = Zinc oxide amount = 9.1 addition = Bentonite addamount = 2.7 note = |From a University of Georgia class handout on glaze & clay from Andy note = |Nasisse Can be used on greenware note = | note = | name = White Super index = date = 12/6/96 source = type = range = firetype = oxidation color = white vistexture = quality = ? transparency = Opaque xtals = bubbles = 608 flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kona F-4 feldspar amount = 64.7 component = Gerstley borate amount = 11.8 component = Whiting amount = 9.4 component = EPK amount = 7.1 component = Silica amount = 7.1 addition = Superpax addamount = 17.6 note = |^6 in sitter- average bend; on buff stoneware; no soaking a lttle note = |dry where thin nice rich white where thick looks like it almost note = |started to crawl wher thickest good fit.overglazes look real good note = |wher thin, but seperate wher base is thicker, probably because of note = |ball clay in o.g s submitted by: Ed Brownlee e-mail: note = |edware@umich.edu name = White Super index = date = 12/6/96 source = type = range = firetype = oxidation color = white vistexture = quality = ? transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kona F-4 feldspar amount = 55 component = Gerstley borate 609 amount = 10 component = Whiting amount = component = EPK amount = component = Silica amount = component = Superpax amount = 15 note = |^6 in sitter- average bend; on buff stoneware; no soaking a lttle note = |dry where thin nice rich white where thick looks like it almost note = |started to crawl wher thickest good fit.overglazes look real good note = |wher thin, but seperate wher base is thicker, probably because of note = |ball clay in o.g s submitted by: Ed Brownlee e-mail: note = |edware@umich.edu name = White Waxy index = date = 08/01/2001 source = type = range = - 10 firetype = Ox or Red color = very white vistexture = quality = fat waxy satin matt transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kingman feldspar amount = 41 component = Silica amount = 20 component = Talc amount = 15 component = Gerstley borate amount = 12 component = Dolomite amount = component = EPK amount = note = |> ClayArt Listserv recipe < If you find this glaze useful, please note = |consider submitting it to the GlazeBase project with full 610 note = |documentation Use one of the GlazeBase submission formats available note = |on the CeramicsWeb web page note = | note = |comments: a nice, fat , matte very-white Due to the magnesium the note = |talc, this glaze has that peculiar property of turning cobalt purple note = |Can use Custer instead of Kingman and use 15 gr ( instead of 12 gr) note = |of Gerstley Borate for cone glaze name = White Waxy index = date = 6/24/97 source = type = range = firetype = Ox or Red color = white vistexture = quality = waxy transparency = Translucent xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Custer feldspar amount = 43 component = Gerstley borate amount = 15.7 component = Flint amount = 12.1 component = Whiting amount = 12 component = Talc amount = 8.6 component = EPK amount = 8.6 note = |I use it in reduction but I have had some luck with it in oxidation note = |too Sarah Barnes name = White WG index = date = 4/3/98 source = type = range = - firetype = oxidation 611 color = white vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Feldspar amount = 34.48 component = Gerstley borate amount = 11.49 component = Zinc oxide amount = 11.49 component = Dolomite amount = 17.24 component = Flint amount = 25.29 note = |Nice white, get pastel colors when adding cobol or copper carb Slips note = |show through very nicely I have spent about a year reading all of note = |the good things you all have had to share and thought it is my turn note = |to some of the giving Here are some formulas that I have gathered note = |from the studio I don't know who the original creators of these are note = |Hope you all enjoy them sue hintz name = Wood Ash Look index = date = 08/01/2001 source = type = range = firetype = oxidation color = vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = 612 by_vol = n batchsize = component = Ferro frit 3195 amount = 230 component = Whiting amount = 170 component = EPK amount = 100 note = |> ClayArt Listserv recipe < If you find this glaze useful, please note = |consider submitting it to the GlazeBase project with full note = |documentation Use one of the GlazeBase submission formats available note = |on the CeramicsWeb web page note = | note = |comments: hi I have a recipe for a fake wood ash at cone note = |oxidation It does run in those rivulets I added 3% copper note = |carbonate but I am sure some other colorants would be worth a try note = |submitted by: Suzanne Fuqua e-mail: Suzanne511@aol.com note = | name = yee vian shin index = date = 4/21/95 source = type = range = firetype = color = with 5% zircopax, white vistexture = quality = texture, mottled transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Nepheline syenite amount = 34.95 component = Wollastonite amount = 12.04 component = Lithium carbonate amount = 2.65 component = Zinc oxide amount = 5.84 component = Strontium carbonate amount = 10.68 component = EPK amount = 17.43 component = Silica 613 amount = 16.42 note = |texture - sea shell kind of texture with pattern when reflected by note = |light with 5% zircopax, white add colorants like mason stain or note = |whatever oxide you want to create what color you want when you fired note = |this, you can apply it thick submitted by: yee vian shin aka Frankie note = |Yeevia e-mail: yeevi2@acc.wuacc.edu note = | name = Yellow Bright index = date = 11/15/98 source = type = Mid-fire range = - firetype = Ox or Red color = bright yellow vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Kaolin amount = 30 component = Frit 5301 amount = 70 addition = Bentonite addamount = addition = Vanadium stain addamount = 10 note = |From a University of Georgia class handout on glaze & clay from Andy note = |Nasisse name = Yellow green slip glaze index = date = 11/15/98 source = type = range = - firetype = Ox or Red color = yellow green vistexture = quality = transparency = 614 xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Albany slip amount = 60 component = Frit 5301 amount = 40 addition = Copper carbonate addamount = note = |From a University of Georgia class handout on glaze & clay from Andy note = |Nasisse note = | note = | name = Yellow Ochre Glaze index = date = 02/26/2002 source = type = Zinc matt range = firetype = Ox or Red color = vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Kaolin amount = 29 component = Frit 3110 amount = 26 component = Zinc oxide amount = 17 component = Flint amount = 16 component = Lithium carbonate amount = addition = Red iron oxide addamount = 615 addition = Tin oxide addamount = addition = Yellow ochre addamount = 0.5 addition = Copper carbonate addamount = 0.4 note = |from Mary Barranger name = Yellow Seto Leach index = date = 4/3/98 source = type = range = firetype = oxidation color = yellow vistexture = quality = transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Wood ash amount = 66.67 component = Custer feldspar amount = 33.33 addition = Yellow ochre addamount = 33.33 note = |comments: Seems to be better on note = |porcelain Some- times bright yellow, sometimes browner depends on note = |mineral content of the ash which varies from wood to wood Darker and note = |more opaque where thin goes to almost black Yellow where thicker note = |Keep glaze thin or you will be scraping shelves Becomes transparent note = |yellowish brown and very fluid when thickly applied The mid way note = |thin/thick of application is mottled like a salt fired piece and is note = |satin matte But I got great reds, yellows, browns, blacks on pieces note = |where it's thinner To make tiny rivers of ash I make the same glaze note = |substituting Red Art for the Ochre and trail it on with a slip trail note = |bulb Caution: use rubber gloves with unwashed ash glazes or face the 616 note = |possibility of contact dermatitis It will mildly burn the skin I note = |keep Cornhuskers lotion and Hydrocortisone cream around the house note = |anyway I layer it with a glossy, glassy glaze that by itself has its note = |own problems like keeping me up at night to the sound of loudly note = |cooling and crazing *pings* I use a glaze with wood ash I don't wash note = |the ash, but I screen it The woodash has to be soft, white, note = |fluffy Not from a wood kiln! That kind is sintered and won't get the note = |best results You can tell it will feel crispy at first I'm not note = |taking responsibility for anyone using these glazes, etc Something note = |is probably toxic They are examples of my research and they work out note = |in formulation Which is what they are examples of So go formulate note = |your own non-toxic glazes, if that is possible It's probably bad for note = |the environment too Email me with questions as to household note = |performance, as that may be indicative of other problems The badly note = |crazed surfaces are not considered to be a continous-non porous note = |sanitary surfaces Eric Hansen, Lawrence, Kansas note = |wabi_sabi@mailexcite.com name = Yellow Woo index = date = 4/21/95 source = type = range = firetype = color = deep yellow vistexture = quality = matt transparency = xtals = bubbles = flow = durability = flaws = tested = imagefile = notefile = limform = by_vol = n batchsize = component = Nepheline syenite amount = 42.51 component = Strontium carbonate amount = 23.93 component = Dolomite amount = 15.45 component = Silica 617 amount = 9.05 component = Kaolin amount = 9.05 addition = Zircopax addamount = 19.28 addition = Red iron oxide addamount = 3.58 addition = Bentonite addamount = 4.77 addition = Epsom salts addamount = 1.19 note = |kiln type: gas nice deep yellow with brown spotting over iron bearing note = |clay when thin Waxier and paler when thick submitted by: John note = |Anthony e-mail: JTRAX@AOL.COM name = Zakin K15-1 index = date = 6/3/96 source = type = range = firetype = oxidation color = dark blue vistexture = quality = semi -matt transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Nepheline syenite amount = 40 component = Dolomite amount = 18 component = Silica amount = 18 component = Kaolin amount = 12 component = Bone ash amount = component = Lithium carbonate amount = component = Zinc oxide amount = addition = Copper carbonate addamount = note = |Tested on white Stoneware THIS IS A DARK BLUE GLAZE, NICE TEXTURE, 618 note = BLUE note = note = source note = note = |WORKS WELL THIN SEMI-MATT IF THICK THEN IT'S GLOSS AND REALLY |(should sell like crazy ) submitted by: Sharon LaRocca-Miranda |e-mail: FMIRANDA@alpha.CC.OBERLIN.EDU , FMiranda@oberlin.edu |for original recipe: Zakin | name = Zakin's GK ash index = date = 08/01/2001 source = type = range = - firetype = Ox or Red color = vistexture = quality = ash runny transparency = xtals = bubbles = flow = durability = flaws = tested = Untested imagefile = notefile = limform = by_vol = n batchsize = component = Ferro frit 3124 amount = 90.9 component = Magnesium carbonate amount = 35.3 component = Nepheline syenite amount = 50.5 component = Strontium carbonate amount = 55.5 component = Spodumene amount = 75.8 component = EPK amount = 50.5 component = Whiting amount = 65.7 component = Wood ash amount = 75.8 addition = Opax addamount = 60.6 addition = Bentonite addamount = 10.1 note = |> ClayArt Listserv recipe < If you find this glaze useful, please note = |consider submitting it to the GlazeBase project with full note = |documentation Use one of the GlazeBase submission formats available note = |on the CeramicsWeb web page note = | 619 note = |comments: Use unwashed fireplace ash Doesn't add to 100 because of note = |the strontium/barium substitution, the bentonite, and the ash This note = |may be closer to cone than cone but seems to work over a range of note = |a couple cones This is Zakin's GK base with 15% unwashed, mixed note = |fireplace ashes, with strontium substituted for barium and superpax note = |for opax By itself over porcelain, the glaze is not particularly note = |interesting But other glazes on top of it run and drip and blend note = |together nicely I've found that if I glaze the lower 2/3 or 3/4 of a note = |pot with a well-behaved glossy glaze, brush a coat of this ZGK ash note = |glaze on the top 1/3 or so and then brush or dip some third glaze on note = |top of the ash glaze, I get a nice pattern of runs that don't go off note = |the bottom of the pot onto the kiln shelf (usually) Different glazes note = |give different kinds of runs and bands of different glazes are note = |interesting too The few times I tried a matte glaze on the bottom, note = |the pots cracked Could have been coincidence But I've been sticking note = |with glossy glazes on the bottom since then submitted by: Janet note = |Price e-mail: jprice@kzoo.edu note = | 620