Re: Lithium palladium vs. normal palladium

[Ender100@aol.com]

Loris,

are you rod coating or brush coating—that could be part of the difference.

Mark
In a message dated 1/18/07 2:21:23 PM, mail@loris.medici.name writes:


> But Witho is double coating with half-strength solutions (or using two 
> times water - if you like). So the final amnt. of iron sensitizer and 
> Pd double salt remans the same (therefore should act the same). I had 
> to increase exposure times back when I was double coating Classic 
> Cyanotype to get better Dmax - but the solution wasn't half strength, 
> it was full strength. Probably it was due to the extra filtering 
> effect caused by more concentrated coating solution...
>
> BTW, 2ml for 12x20 sized print on COT320 is very little by my 
> standards. I'd use about 2x solution for that size. I use 0.2ml to 
> 0.15ml per 10 square inches depending on the RH and coating method 
> (glass rod / brush). See below:
>
> 12 x 20 = 240 / 10 = 24 * 0.2 = 4.8ml,
> 12 x 20 = 240 / 10 = 24 * 0.15 = 3.6ml.
>
> See? Even at 0.15ml per 10 square inches, I use about 80% more than Witho!?
>
> Regards,
> Loris.






Best Wishes,
Mark Nelson

Precision Digital Negatives - The System
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