Alberta Slip Original cone 6 base glaze
Recipe
Notes
Alta known as GA6-B at PlainsmanClays.com. The successor recipe to GA6-A (this uses Ferro Frit 3195 or the equivalent Fusion F-2 instead of 3134). It fires to a more brilliant glossy and durable surface and has become the standard go-to honey/amber base recipe for Alberta Slip at cone 5 or cone 6. We recommend the C6DHSC or C5DHSC firing schedules. We recommend the addition of 2% iron oxide to get a richer color. The iron has an added benefit: It gels the glaze (the 2% is low enough that it does not over-gel, it just produces a nicer-to-use slurry, one that goes on more evenly). This recipe fires to a lower thermal expansion than GA6-A did (by virtue of higher B2O3, Al2O3 and SiO2 levels) so will solve any crazing issues you may have had. For an even lower expansion and better melting version consider using L3500G, it is made using Ferro Frit 3249. This base will not produce floating blue effects with rutile or titanium additions, the GA6-A base is needed for that. In addition, this one also does not crystallize on slow cooling the way GA6-A does. If you need even better durability, this will likely accept 45 micron silica additions without loss of gloss, especially at cone 6. Start by adding 5% (then 10%). The more it will take the harder it will be.
Description
An amber-colored glaze that produces a clean, micro-bubble-free transparent glass at cone 5-6. Works well on brown and red burning stonewares.