Quote:
Originally Posted by mariusgmioc
And please let me know if you find a source of Nital in Europe as I normally get mine from the US. 
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Hi Marious,
it's a commercial link, so I decided, to send you a private message.
If you use nitric, you have to use nitric with at least 65%, better 70% or more. This has nothing to do with the 2-4% you use for etching! This was a very important advise from an analytical chemist.
Roland