- developing temp: 115 F is definitely at the upper end, and for delicate supports or sizing will probably be too host. Albumen over gelatin
can probably stand this, but I start watercolor papers sized only with gelatin at not above 108 F to avoid blisters and other disasters.
- sandwich under weights: not going to hurt anything, but not required so superfluous. Might be helpful to keep tissue in contact with
the support if one (or both) is curled or cockled, but that is a problem that needs to be eliminated
- 1 hour mating: that is much longer than required. Print will still develop OK, but I don't like what happens when the sandwich dries out.
15 minutes is usually more than sufficient for prints on photo papers. Gelatin-sized watercolor papers seem to do better with 30 minutes.
As usual, test to see what works for you. It takes a lot of time to make a carbon print, so productivity is a built-in issue. I don't want to
spend longer than necessary.
- soak time: I think Sandy has been advocating longer soak time for quite a while, and I think it's sound advice based on his usual thorough
testing. There are lots of differing methods here, but I believe too short a soak (tissue absorbs insufficient water) is the culprit in many
transfer failures. I generally soak for a minimum of 90 seconds, but a bit longer has never hurt anything. Water temp, tissue and final support,
and sizing all play a role so testing required.
- soak temp: I like water straight from the tap -- quick and easy, no complications. My water is generally 65-70 F so I never warm it up or
cool it down. I believe Sandy also advocates a mating bath of 65-70 F. That doesn't mean other temps can't provide good results. I would
caution against trying to replicate a workshop environment since it can differ significantly from your home work space. The takeaway here is
that the bath temp impacts the tissue absorbs water. My advice is always start simple (i.e. tap water at tap temp) and then make adjustments
for specific problems.
Guys
Thanks for the comments
Andrew- Tissue in mating bath for 4 minutes before mating step. Sandwich is under weights for 1 hour. Development at 115F .
Adox is JUST OK- not great for learning the process. Sometimes it works without frilling but other times not ok. I am usimng this just to help learn this process.
I will try some fixed out photo paper. How long should I fix out the photo paper and should I use one or two baths plus washing?
Carioca- Thanks for tips on squeegeeing step.