Re: Taming Fabriano Artistico (Trad. White) for Cyanotype
Earlier posts on a related topic suggest oxalic acid reacts with calcium carbonate to create mini gallstones. Hydrochloric acid seems to cause long term damage to paper. Perhaps glycolic acid is a good alternative; it is sold cheaply by hardware stores as a limescale remover. I understand it is very similar to acetic acid, but without the stink. Don Sweet ----- Original Message ----- From: "Jeremy Moore" <jeremydmoore@gmail.com> To: <alt-photo-process-l@usask.ca> Sent: Thursday, December 04, 2008 9:08 AM Subject: Re: Taming Fabriano Artistico (Trad. White) for Cyanotype > Loris, > > What do you meant by oxalic acid causing a gritty surface? Do you mean > the print is gritty or that the paper is no longer as smooth? I've > used it to pre-treat Fabriano Artisitico Extra White Hot Press and > Rives BFK and none of my prints show this with pt/pd or traditional > cyanotype. Is there an interaction with the New Cyanotype that causes > this? > > -Jeremy- > > 2008/12/3 Loris Medici <mail@loris.medici.name>: > > > Because that's what I have on hands. I absolutely refrain from using > > oxalic acid (because it will cause a gritty surface and won't help in > > printing New Cyanotype - tried that before)
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