| | | -
I also use PEC pads with PEC fluid. It's not cheap, but then again, neither are your precious negatives or slides.
I was never able to get neat isopropyl alcohol (which is a sound recommendation) from the pharmacy, and my stock of the stuff from my days in a medical research laboratory, long past, is also long gone. I was put on to PEC fluid by another photographer, and it's too good for me ever to consider reverting to isoprop.
-
Any ideas anyone for formulating a solvent as alternative to pure Isopropanol?
-
At least in Australia, the easiest source of relatively pure isopropanol is electronic stores. I buy it in 1L steel cans for about $10-15 and use that to refill my pump-spray thingo. It's 97% or 99%, depending on where you buy it and how lucky you get.
PEC fluid is methanol, right? I believe you can buy that as model engine fuel in a really quite pure form, if you're willing to buy a few litres.
-
The MSDS for PEC-12 lists Methanol and N-Butyl Acetate. Doesn't say the proportions, but N-butyl acetate is just a solvent as well. I wouldn't imagine leaving that portion out would make that much difference.
Last edited by Fireguy2002; 11-01-2009 at 08:51 AM.
Reason: I'm tired
-Chris
"I'd Really Rather You Didn't Use My Existence As A Means To Oppress, Subjugate, Punish, Eviscerate, And/Or, You Know, Be Mean To Others. I Don't Require Sacrifices, And Purity Is For Drinking Water, Not People."
FSM
-
 Originally Posted by polyglot  PEC fluid is methanol, right? Mixture of 99 Methanol and N-Butyl Acetate. Solvent combinations often work much better than either of the ingredients alone. Considering the price of the ingredients the stuff is hideously overpriced.
However, it works extremely well and seems to contain no water at all.
-
Sponsored Ad. (Subscribers to APUG have the option to remove this ad.)
-
100 Proof Vodka was recommended to me by a man whos being doing photography for half a century
-
100 proof vodka is half water.
-Chris
"I'd Really Rather You Didn't Use My Existence As A Means To Oppress, Subjugate, Punish, Eviscerate, And/Or, You Know, Be Mean To Others. I Don't Require Sacrifices, And Purity Is For Drinking Water, Not People."
FSM
-
thats regardless, the question was an alternative for isopropyl alcohol and it can be used with positive results
-
It's not regardless.
Alcohol with a lower purity, such as rubbing alcohol, will cause streaking and take longer to dry. Also, the higher water content of rubbing alcohol may cause the emulsion of the photographic materials to swell, resulting in physical damage and possible deterioration of image-forming dyes
http://www.kodak.com/global/en/consu...5/cis145.shtml -Chris
"I'd Really Rather You Didn't Use My Existence As A Means To Oppress, Subjugate, Punish, Eviscerate, And/Or, You Know, Be Mean To Others. I Don't Require Sacrifices, And Purity Is For Drinking Water, Not People."
FSM
-
well what do you use for your final wash of your negative before you hang it up to dry, water(filtered or distilled) or 99% Isopropyl alcohol? I use water for my final wash and my negatives dont get streaks, my grain doesnt swell, and my negative doesnt get physically damage. I know that its the rule of thumb that if your going to use Alcohol, for it to be as pure as possible, but I dont think there is such a need for a irrational fear of water. Im probably not as experience as you or most people on this forum but 100 proof Vodka does work. We could fight about this all day but its just like the Squeegee wars, If you like them or not, it all depends on what works for you, period
| |
Adv Reply
