Hand Shaped Pottery And yes glazes will be featured
Jan 04, 2016
Hand Shaped PotteryAnd yes glazes will be featured
Coil Construction
Slab Constructioin
Glaze
Glaze Colors
Rutile Glazes
More rutile glazes
Choices We Need to MakeColor of Glaze Matte or Low Gloss or High Gloss
Rutile ?Dip or paint on?
Testing Glazes
• Make tiles with raised designs• Fire• Dip or Paint on glazes• Two coats in middle• Three coats on bottom• Fire• Photograph• Record results
Issues to Look For
Pinholing shivering
blistering crawling
crazing pinging
Glass FormerMain ingredient in a glazeUsually silica
FluxUsed to help melt glaze or lower melting point
StabilizerUsed to stiffen glaze and hold it on to clay bodyExtends the melting point rangeUsually alumina
Glossy Base
Ferro Frit 3124 30 %EPK Kaolin 30%Gerstley Borate 40%
Does show some crazingWorks great with oxides and stains but shows under color as well
Matte Base
Ferro Frit 3195 43%EPK Kaolin 14%Whiting 43%
Apply thickWorks well with textured slips and oxides and stains
Satin Glaze
Ferro Frit 3195EPK KaolinDolomite
Needs to be very thickOxides and stains work well with this
Metallic Oxidescolor the glaze
Fe2O3 black and red glazes 1 – 5%FeO black and red glazes 1 – 5%
CoCO3 Deep blue 1-3%
Co3O4 blue 1%
CuCO3 greens, reds, blues 2%
TiO2 (Rutile) mottled look for blues 0.10%
MnO2 makes blacks blacker and blues bluer 3%
SnO3 makes whites whiter 10%
CrCO3 green 3%