hand shaped pottery and yes glazes will be featured

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%