both Ann and Ric are great people
the sand fluxs i've tried work well but at a very high heat... for wrought and bloom steel.. .. at least these fluxs were very thick and goobery at an orange heat.. it would be very hard to squeeze this out of the weld boundary during hammering...
-- not sure on the rice ash... ( impossible to find around here... )
it maybe that something was added to the borax to lower its melting point... if borax wasn't there.... then i'm not sure at all
maybe flurospar... .. never worked it and don't want too either... bad fumes
-- but its a very aggressive flux agent
Greg
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