[alt-photo] Re: dilution of pt/pd

[Paul Viapiano]

No, Christina...I said starting at 12ml.

He adds 1.5ml to 3ml to get 4.5ml, adds 3.5ml to 8ml to get 11.5ml, adds 
7.5ml to 12ml to get 19.5 ml

That's what his chart in the book indicates..he also said these are 
guidelines to check out, if I recall.

p


----- Original Message ----- 
From: "Christina Anderson" <zphoto at montana.net>
To: "The alternative photographic processes mailing list" 
<alt-photo-process-list at lists.altphotolist.org>
Sent: Thursday, July 22, 2010 6:35 AM
Subject: [alt-photo] Re: dilution of pt/pd


> This is interesting, Paul. Thanks.
>
> Wow, when he gets up to 12ml he's adding over 50%?? Does he say he is 
> double coating then?
> Chris
>
> Christina Z. Anderson
> christinaZanderson.com
>
> On Jul 21, 2010, at 4:53 PM, Paul Viapiano wrote:
>
>> In the appendix of the Arentz book, Stan Klimek says that he extends the 
>> platinum solution by adding distilled water.
>>
>> It's my understanding that he doesn't extend the solution if he's using 
>> less than 3ml of total solution (FO + pt). But starting at 3ml he extends 
>> by adding 1.5ml distilled H20, 8ml by adding 3.5ml, 12ml by adding 7.5 
>> ml.
>>
>> He states that this wetter solution makes for a smoother coat.
>>
>> I believe he also states that his pt/pd ratio is 1:5.
>>
>> Paul
>>
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