U of S | Mailing List Archive | alt-photo-process-l | Re: polymer plate drying time

Re: polymer plate drying time

Sounds like it's working for you the way it should be for everyone.
Have you found problems with blotting face down?

I'm in Colorado, and we're as dry as can be here. I'm convinced my problem is taking place during the exposure of the positive, not during blotting in any case.

I assume you're removing the mylar on the KM73 before exposure and have a vacuum frame with glass. What kind of pressure are you getting and how much drawdown time are you doing prior to exposure?

Sorry if you've already outlined your procedure in other postings. I'd love for things to work as easily for me as they seem to be for you!


Keith Taylor wrote:

I don't seem to. Much of my work has texture to it, so that helps, but recently I made a print with a smooth sky graduating to dark grey and that was OK.

I'm really not doing anything physically different or extreme. My darkroom tends to be quite dry though - right now it's at 23%RH. I blot the plate very quickly with newsprint (plate face UP - not down) and replace it with fresh paper almost immediately. You have to be extremely careful though, because as you know, the plate's very tacky at this point and you have to work quickly.


On Mar 16, 2007, at 9:18 PM, Jon Lybrook wrote:

So Keith,

Do you have any problems with the KM73s and OHP with those patches plaguing the rest of us? How do you mitigate them?

Someone recently suggested I try spraying a little silicon spray onto a rag and buffing the plate. Seems that Solarplates have a slightly viscous quality to them while the KM73s are more tacky. I'm probably going to test both with a light buffing of silicon AND 4 passes with the Kyrlon 1303 this weekend and see which, if either, work.

Drying seemed to help the durability quite a bit. No scratches after 7 prints. Thanks again for that feedback and advice!