I checked the NazDar web site. They have inks available, but there is a note that they will no longer produce etch resist inks. The material is limited to the available supply - but all their inks appear to be available at this time. [Non-text portions of this message have been removed]
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Re: [Homebrew_PCBs] Silk screen methods
2005-01-18 by Earl T. Hackett, Jr.