I went ahead and used the F-200 feldspar for the woo blue and two deifferent celadons. Also used f-200 for substitute for generic feldspar in my temmaku glaze.
My only reservstion is that while feldsprs aare generally feldspars for using in clay components, for glazes, you do need to be careful. If a pot ash spar had higher aliminua content thaan required, it will become runny glaze. if not enough alimuna, you will get a glaze full of pin holes. So it's still a crap shoot. But I haave to believe(since I have 200# of f-200) tht it will substiture for the custer feldspar. Other wise I can't imagine why I would have bought so much of it back five or so years ago.
I'm really ass whooped, but did get almost nine hours of solid sleep(most I've done in years). Unfortunately, Mrs. Wonderful invited some four or five friends over yesterday and they used all my espresso beans for drip "effin" coffee, leaving me nothing when I woke up. Swell, run to Wegman's to get beans
Mr. Wonderful " Oh, can you get some diapers nd baaby wipes too?"
ARRRRRRHG!
I'm heading up in bout 10 minutes to finish glazing. Starting to thing it more practical to wait till next weekend to fire. I'll likely hang out there during the firing process, and want to have energy so I can spin more pottery, roll out slabs and get a fountain started for that 4/17 EAM deadline.
P.S> I had forgotten how much raw glaze it tkes to do a full lod in this 36 cu ft. monster. Not a great thing for testing glzes. But this time I'm going to lt the kiln soak in reduction for a soilt hour or two and I'll be damned if I don't get my reds and celadons. This is the one, I can feel it, well, I hope it's feeling of "got it right!" |
