Another PVA question
- To: alt-photo-process-l@usask.ca
- Subject: Another PVA question
- From: Keith Gerling <keith.gerling@gmail.com>
- Date: Fri, 13 Nov 2009 12:39:45 -0600
- Comments: alt-photo-process mailing list
- Delivered-to: alt-photo-process-l-archive@www.usask.ca
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OK, this is more troubling. It seems that when I try to hasten the development of a stubborn third layer using a brush, it also brushes off the underlying two layers. That's bad. I'm using Gamblin PVA size, undiluted. Never saw THAT happen with gelatin. Hardened layers were always impervious to anything. Am I doing something wrong here?. Arghh. My preliminary tests were very good and I went and bought 4 big bottles!
On Fri, Nov 13, 2009 at 12:24 PM, Rajul <eyeear@shaw.ca> wrote:
I too noticed that PVA incorporated in the ground mix for printing on Al seemed to leave a rough surface after 3-4 gum passes. The PVA containing ground was much sturdier than the one without it but was gelatin-sized.
I have re-coated the prints with PVA and am doing another pass to see how it behaves. Will let you know what happens.
On 13-Nov-09, at 10:16 AM, Keith Gerling wrote:
I've started experimenting with PVA size for gumprinting and it seems to be acting a little strange. With gelatin size, the first layer of gum usually takes longer to clear. With PVA the first layer clears quickly. sometimes VERY quickly. As I add layers, I notice that not only does it take longer to clear, but slight staining seems to be happening. Is the PVA being washed away? Do others resize with PVA mid-print?
Sorry to change the subject, but I better ask my question before the meter starts running!
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