How long does Kallitype Fixer stay alive?

Janosch Simon

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Joined

Oct 28, 2012

Messages

41

Format

Multi Format

• Jan 29, 2018

• #1

Hey there i didnt find a clear answer to my question so i start a new thread
i use Sandy kings fixer formular for fixing my kallitypes
Add 50g sodium thiosulfate, 10g sodium carbonate and 2g sodium sulfite to 750ml water.

how long can i use the fixer? when do i know i need to mix new?

cheers and thx janosch

 

nmp

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Jan 20, 2005

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2,017

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Maryland USA

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35mm

• Jan 30, 2018

• #2

I would say you would have a better luck asking in the Darkroom B&W forum than here.

 

Mainecoonmaniac

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Dec 10, 2009

Messages

6,297

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• Jan 30, 2018

• #3

Here's a great article by Sandy King.

https://unblinkingeye.com/Articles/Kallitype/kallitype.html

 

Herzeleid

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Oct 31, 2008

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381

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Ankara/Turkey

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• Jan 31, 2018

• #4

The Sandy King's fixer formula resembles TF-2 in terms of the simplicity of ingredients.
It is scaled down in terms of thiosulfate concentration and sulfite accordingly and adjusted with a bit more carbonate to give slightly higher if not similar ph.
I would say the stock should keep for few months, TF-2 stays well for six months.

IMO, I wouldn't risk it for more than 10 8x10 prints, since kallitype contains iron and silver it can exhaust fixer quickly.

 

OP

OP

Janosch Simon

Member

Joined

Oct 28, 2012

Messages

41

Format

Multi Format

• Jan 31, 2018

• #5

thx serdar at the moment im still in the testing phase so when i start with important prints i will do sandys two tray method and change the first one after 5-10 prints

cheers and thx
janosch