I have a drug-store print which I blue toned in either Kodak T-11 or T-12 over 50 years ago. It is still in perfect shape even though it hasn't been given any special care being stored in a non-archival box in a drawer. I didn't particularly like the effect of the blue color and never toned another print so I can't say whether it's longevity is a fluke or not. Jerry -----Original Message----- From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow Sent: Monday, January 03, 2005 6:15 PM To: pure-silver@xxxxxxxxxxxxx Subject: [pure-silver] Re: RC to FB ----- Original Message ----- From: "Breukel, C. (HKG)" <C.Breukel@xxxxxxx> To: <pure-silver@xxxxxxxxxxxxx> Sent: Monday, January 03, 2005 2:45 AM Subject: [pure-silver] Re: RC to FB > > >> -----Original Message----- >> From: Peter De Smidt [mailto:pdesmidt@xxxxxxx] >> Sent: Friday, December 31, 2004 10:44 PM >> To: pure-silver@xxxxxxxxxxxxx >> Subject: [pure-silver] Re: RC to FB >> >> >> >> I once read that if you want to put >> a print in a >> bathroom or kitchen, that you should frame the >> dry-mounted >> print with glass >> as the backing board, instead of using archival >> corrugated >> board. You then >> band the edge of the glass, mat board, print, mat board, >> glass sandwich with >> aluminum foil, which is then taped (with Mylar tape) to >> form a vapor >> barrier.The extra glass would add weight and cost, and >> one >> would have to be >> careful that the tape doesn't peek out from under the >> frame. >> Does this >> soundlike a viable way to minimize print deterioration >> due to >> environmental >> factors? >> > > > FWIW: > > I have a blue toned FB print (blue toning is one of the > shurest ways to > DEcrease the permanance of your prints....;-)..) > sandwiched between two > glass plates and 2 sheets of archival matt board, no > protection on the > edges, hanging in my bathroom for 3 years: it's > brozing/silvering at the > edges a oit, which is actually kinda attractive, but it's > keeping > surprisingly well considering the conditions (before the > bathroom it had > been hanging in a bedroom for 2 years, and the bronzing > already started > then) > > Best, > > Cor You should specify that this applies to Iron-blue toning, not to Gold toning. Gold does not produce the brilliant blue of Iron but is very permanent. Iron toning converts the silver to a form similar to cyanotype. It is affected by alkaline solutions and too much light but will often regenerate in the dark. In general, ferricyanide-metal toners, like Iron and Copper toners, are less permanent than the raw Silver image. --- Richard Knoppow Los Angeles, CA, USA dickburk@xxxxxxxxxxxxx ================================================================================ ============================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.