RE: Pyrocat-HD for alt printing?

Thanks for the info Sandy,

Do you think to commercialise/market the propylene glycol variant of
Pyrocat-HD? It's almost impossible for me to get pyrocatechol or
pyrogallol here in Turkey so I prefer to buy Pyrocat-HD it as a
ready-made stock solution (from the European distributor) instead of
mixing my own.

Regards,
Loris.

-----Original Message-----
From: Sandy King [mailto:sanking@clemson.edu]
Sent: 16 Ağustos 2005 Salı 16:33
To: alt-photo-process-l@sask.usask.ca
Subject: RE: Pyrocat-HD for alt printing?

...

Finally, if you really want a very long-lived
Pyrocat-HD Stock A solution, there is the option
of mixing it in propylene glycol. You must heat
the glycol in a water bath to around 150-75
degrees F, then add the chemicals in regular
order, stirring each until completely dissolved.
This solution does not oxidize and like stock
HC-110 solution will last for years and years.
Received on Tue Aug 16 07:38:30 2005