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Originally Posted by Slip666
Is there anyway to measure the amount of acid in the bath with a hydrometer or something?
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Yes. As I posted elsewhere in another thread.
Caswell LCD 3:1 solution is about 1.075 specific gravity
the od method 2:1 solution is about 1.100
Search the other threads for my posts. I have a lot more info supporting this there.
I do point out that specific gravity doesn't change too much for normal anodizing solutions but it's a simple way to get on track as to what your solution might be.
Sage