Archived posting to the Leica Users Group, 1999/05/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dan Cardish <dcardish@microtec.net> on 05/21/99 06:37:39 AM Please respond to leica-users@mejac.palo-alto.ca.us At 08:54 PM 20-05-99 -0700, you wrote: >The current issue of the JOBO newsletter arrived. They said that "any" >wetting agent will build up over time, on your >reels, making them difficult to load. Basically, don't put your reels in >any wetting agent. I have read this advice many times before and it does not make sense. Photo Flo and the other like materials are nothing other than very dilute and highly soluble surfactants (soap) . Most photographers only mix three or four drops of the stock wetting agent in the water in a developing tank, normally sixteen ounces. Adequate rinsing of reels placed in the diluted wetting agent should remove any lingering traces of the agent. Placing reels containing freshly processed film in a Photo Flo solution has been my practice for the past 25 years and I have never experienced any problems with reels. If wetting agents build up on rinsed reels then we had better stop washing dishes. Glen Robinson