I've had a 5lb tub of Lutan F and a container of Acid Bath Crystals
for over 4 years. Does anyone know if there is a shelf life associated
with these products? There is none stated on the containers.
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I have had a large container I have been using of both acid bath crystals
(oxcalic acid) and also Lutan-f. They seem to be just fine. I have
no problem keeping the ph at 1.5 to 2 with the acid.