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Old 11-03-2003, 02:46 PM
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Pete VanderLaan Pete VanderLaan is offline
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The simplist formulas are usually the best. That formula was a derivation I did on Dudleys original formula from back in 68. I think if it is missing anything, it is alumina but it works very well as is and never ever cords up. It takes colorants beautifully and is still used by quite a number of friends I have given it to. Despite the lack of alumina, I wouldn't mess with it since it doesn't seem to like changes in it's cage.

What you did with the soda/moisture calculation is great. My usual problem with moisture is in the potassium
carbonate. It gets very hard and caked on the surface. I will be interested in how it works for you. I recall it having a C.O.E. of about 94.5.
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