Alberta Slip Glazes

Test for leaching by placing your glaze sample in vinegar over night (or for a few days) to see if the color or surface has changed at all (if it leaches it may not be food safe depending on what materials are in the recipe). Also test for crazing by heating glaze samples to around 350F and then submerging them into room temperature water (do this 2 to 3 times).

Alberta Slip Black Cone 10R
A jet a black glossy glaze is as easy as 1% black stain and 99% Alberta Slip (Mason 6666 or 6600). This is a metallic silky crystal black, it is Alberta Slip plus 5% black stain and 7% iron. This is Alberta slip by itself at cone 10R, it looks like a tenmoku.	Recipe Alberta Slip 99.00 Mason 6666 or 6600 1.00 100.00	Notes Alberta Slip II is a great base for black glazes at cone 10 reduction, only 1% black stain is needed to obtain a jet black glossy. Increasing amounts of stain up to 5% move toward a matte black. Adding 5% black stain and 5-7% iron produces a crystal intense slightly metallic gunmetal black.

Alberta Slip Black Cone 6
This one inch tall mug was made using Alberta Slip plus 1% black stain and 20% frit 3134.	Recipe Alberta Slip 73.00 Frit 3134 20.00 Zircopax 4.00 Mason 6666 Black Stain 3.00 100.00	Notes A glossy black. Should be ball milled.

Alberta Slip Cone 6 Base Glaze
Alberta slip melts well with very little frit at cone 6 G2865 Ravenscrag:Frit base ball milled on a lighter clay Many flits have been tried but 3134 at 20% seems to give the best all around base. It is quite fluid and fires to a smooth glossy defect free surface. This one inch tall mug fired at cone 5 looks almost identical to a cone 10 reduction celadon glaze.	Recipe Alberta Slip 80.00 Frit 3134 20.00 100.00	Notes Should be ball milled to remove iron specks. Covers very well to produce a transparent amber glass. This is an excellent base glaze for many dark colors.

Alberta Slip Crystal Kaki Cone 10R
Alberta slip becomes a crystal kaki at cone 10R as iron is added, here it has 3%. The effect becomes quite intense by 5%.	Recipe Alberta Slip 97.00 Iron Oxide 3.00 100.00

Alberta Slip Deep Brown Cone 6
Chocolate brown glossy Alberta Slip glaze uses 5% lithium, 4% tin, 20% frit 3195 with 5% alumina This 1 inch tal mugs was made using Alberta slip plus some lithium, tin, frit and calcined alumina. This is the class 11 Lithium, 4 Tin, 85 Alberta slip glaze with 5% added alumina calcined	Recipe Frit 3195 21.00 Lithium Carbonate 5.00 Alberta Slip 75.00 Calcined Alumina 5.00 Tin Oxide 4.00 110.00	Notes This recipe is a variation to the G2415E variegated glossy brown. 5% calcined alumina has been added and it fires as a much deeper and very glossy deep brown which variegates to a light brown where thick. For maximum variegation use more lithium (this risks shivering and would have leaching issues however). This needs to be ball milled to break down the lithium and alumina, the more milling the better.

Alberta Slip Lithium Brown Cone 6
10% lithium and 4% tin do this to an otherwise transparent dull brown Alberta Slip. Alberta Slip in a common lithium/tin cone 6 glaze This 1 inch tall mug is glazed with Alberta Slip plus lithium, tin and some frit.	Recipe Alberta Slip 75.00 Frit 3195 21.00 Tin Oxide 4.00 Lithium Carbonate 5.00 105.00	Notes One of the most popular Albany Slip glazes was 11% lithium, 4% Tin and 85% Albany Slip. This recipe reduces the lithium to reduce leaching hazards and shivering problems and it employs a frit to help melt the glaze. While it is not quite as variegated, the surface is very smooth and variation in color with thickness is still very good. This needs to be ball milled to break down the lithium carbonate particles.

Alberta Slip Rutile Blue for Cone 6
2,3,4,5% rutile added to a 80:20 mix of Alberta Slip and Frit 3134 at cone 6 Cone 6 variegated blue made using 4% rutile and 20% frit 3134 in Alberta Slip II This one inch tall mug is made from Alberta Slip plus 20% frit and 4% rutile.	Recipe Alberta Slip 80.00 Frit 3134 20.00 Rutile 4.00 104.00	Notes This glaze has a great glossy surface and variegates a lot going from medium steel blue where it is very thick to amber clear where it is very thin. It covers well at all thickness.

Alberta Slip Tenmoku Cone 10R
100% Alberta Slip II at cone 10R Alberta Slip used as a straight glaze at cone 10R, it looks much like a Tenmoku.	Recipe Alberta Slip 100.00 100.00