G2934 Cone 6 Matte Base Glaze G2926B Cone 6 Clear Glossy Base Glaze GA6-B Alberta Slip Cone 6 Base GR6-A Ravenscrag Cone 6 Base L3954B Mid Temperature Engobe G1916Q Transparent Base Glaze G1947U Transparent Base - Cone 10R G2571A MgO Matte Base - Cone 10R GR10-A Ravenscrag Slip as-a-glaze - Cone 10R L3954N/J Cone 10 Engobe Base
G1916Q Transparent Base Glaze
This recipe provides the greatest thermal expansion adjustability we have seen in a low fire clear glaze. It combines a middle-of-the-road frit with a very low and very high expansion frit (they cancel each other's expansions while increasing the gloss of Frit 3195). Learn more about the recipe here.
G1916Q + 2% iron oxide on L215 fired at cone 03, 05. Both were fired using the 04DSDH schedule. The cone 03 version has a deeper variegated color and the body is stronger, but there are tiny dimples on the surface, almost too small to see (because the glaze firing is significantly higher than bisque, decomposition in the body is generating bubbles). The cone 05 version, right, is like glass.
If the specific gravity is around 1.43 and it is gelled enough it applies very evenly with little dripping. Ware needs to be absorbent. If your ware is thin it might be necessary to glaze the inside and outside in separate operations (with drying time in between).
This is not available as a premixed product. But you can mix (and adjust) it yourself. For our lab information on the recipes, how to mix and use them click here. You can color this using stains or make it white by adding Zircopax.
Low fire glazes are much more difficult to match to the body, crazing and shivering are thus much more common than at higher temperatures. It intended that you adjust the 1916Q recipe to fit your clay body.
G1916Q on L215, L212, L210, L213, Buffstone at cone 03. All exited from the kiln without crazing. The L215, L213, L210 and L212 samples subsequently survived a 300F/Icewater test without crazing, but the Buffstone did not. The L213 would not likely survive a cold-to-hot test without shivering.
Safety Data SheetClick here for web view.
|Plainsman Clays Ltd.|
702 Wood Street, Medicine Hat, Alberta T1A 1E9
Phone: 403-527-8535 FAX:403-527-7508