Re: Modified Zia Formula


Eric Neilsen (e.neilsen@worldnet.att.net)
Wed, 12 May 1999 09:44:56 -0500


"Jeffrey D. Mathias" wrote:

>
> I hope to be able to write up some results of chem tweaking tomorrow.
> Although I will address one issue now. Eric had mentioned that Mike
> Ware had suggested the concentration of the Ammonium Ferric Oxalate to
> be 60% rather than 40%. I have tried this along with various metal salt
> strengths. At first look, I have not noticed difference in the print
> quality or characteristics. However, the 60% solution does seem to coat
> rather "thick" and it may tend to sit on the surface of the paper
> causing some blotching problems. The blotching may be avoided by
> pre-humidification, spreading the coating completely, and careful drying
> of the coating. This does take some extra effort, and with no
> difference in printing, and with the use of more material: My
> recommendation is to use the 40% solution.

What concentration(s) of palladium did you use?

--
Eric J. Neilsen
4101 Commerce Street, Suite #9
Dallas, TX 75226
214-827-8301
http://home.att.net/~e.neilsen



This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:39:32