[alt-photo] Re: Gum washing?

[Johnny Brian]

Thanks. I have been using 1% metabisulfite as I do have some yellow discoloration. I'm reluctant to change much in the process as I created a calibration curve with PDN - and it seems to be working OK. What I was curious about was to how long should I wash the print after metabisulfite treatment. 
Thanks, 
Johnny Brian

On Jan 16, 2012, at 2:27 PM, Loris Medici wrote:

> John,
> 
> Do you experience any dichromate stain? If no, then you don't need
> metabisulfite clearing bath at all! If you do, then first try to cut
> your exposure time - and/or dichromate amount - down and see what
> happens. If you still get dichromate stain, then 5 minutes in ~5%
> metabisulfite should do the job.
> 
> Hope this helps,
> Loris.
> 
> 
> On 15 Oca 2012, at 02:14, Johnny Brian <limnidytis at netins.net> wrote:
> 
>> I've read through the archives, but was curious about current practice of washing gum prints. I've been treating my prints with metabisulfite but wasn't certain about how and how long I should wash the prints.
>> Thanks,
>> Johnny Brian
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