goldfish Posted December 21, 2006 Share Posted December 21, 2006 How much photo-flo do I need for 500 ml ? Link to comment Share on other sites More sharing options...
William Kahn Posted December 21, 2006 Share Posted December 21, 2006 Are you pre-mixing a stock solution? I wouldn't do that...... Link to comment Share on other sites More sharing options...
eric friedemann Posted December 21, 2006 Share Posted December 21, 2006 Per William, Photo-Flo is to be mixed when you need it. You shouldn't and wouldn't need to keep premixed solution sitting around- Photo-Flo concentrate is a liquid, isn't temperature-critical and can be mixed in seconds. That having been said, the answer to your question depends on which Photo-Flo product you're using. For instance, with Photo-Flo 200, you'd need to mix the Photo-Flo 1:200; so you'd need 2.5 ml of Photo-Flo for 500 ml of water: http://www.kodak.com/global/en/health/tiDocs/ti0688/ti0688.shtml#mixing Link to comment Share on other sites More sharing options...
frank.schifano Posted December 21, 2006 Share Posted December 21, 2006 1:200 is the standard dilution for PhotoFlo and you should make it up just before you use it. However, I've found that it is possible and advantageous to use a weaker dilution. It all depends upon your water supply. My standard dilution is something closer to 1:400 and it works fine with my water supply. No streaks or water spots ever. The trick is to use only as much as you need to keep the water from beading up on your film and no more. To much PhotoFlo can leave spots and streaks too, so you have to be a little careful. If the water supply is not hard, start out at half strength. If the water still beads up on your film, then add a little bit more. Link to comment Share on other sites More sharing options...
n_w_gibbons Posted December 21, 2006 Share Posted December 21, 2006 I use 1:400 in distilled water, mixing it just prior to use. Negs are spotless every time. Link to comment Share on other sites More sharing options...
goldfish Posted December 21, 2006 Author Share Posted December 21, 2006 Thanks everyone for your help,what about time recommendation for the photo-Flo "1-2 minute ! am I righ? and should I wipe the Flo up the film or leave it till become dry ? Link to comment Share on other sites More sharing options...
randall ellis Posted December 21, 2006 Share Posted December 21, 2006 One or 2-3 drops for 500ml should do fine. Dip it in and out of the solution a few times and then hang the film. All it needs to do is coat the surface of the film to work. - Randy Link to comment Share on other sites More sharing options...
eric friedemann Posted December 21, 2006 Share Posted December 21, 2006 "(S)hould I wipe the Flo up the film or leave it till become dry." When I was still developing film myself, I'd hang it up and use two freshly-washed fingers as squeeges to remove excess liquid. But the whole point of Photo-Flo is that it acts like a sheeting agent to keep water from spotting- so yes, leave the film wet with Photo-Flo. Link to comment Share on other sites More sharing options...
spanky Posted December 22, 2006 Share Posted December 22, 2006 I use 3ml to 800ml distilled water. So far so good... Link to comment Share on other sites More sharing options...
James G. Dainis Posted December 22, 2006 Share Posted December 22, 2006 I use one capful of photo-flo in about 500ml of water. James G. Dainis Link to comment Share on other sites More sharing options...
wirehead Posted December 23, 2006 Share Posted December 23, 2006 Hrm, I don't squeegie my film after the photo-flo, I use distilled water, and it sheets off astonishingly fast. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted December 23, 2006 Share Posted December 23, 2006 This question is like asking how much shampoo one needs for one's head, how much laundry soap one needs for ones clothes washer. The hardness of ONES WATER will make folks "answers" all different, since folks here have different water supplies. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted December 23, 2006 Share Posted December 23, 2006 In southern California and southern Indiana we have hard water, and in the deep south very soft water, thus the amount of PhotoFlo, shampoo, laundry soap is varied by the region one lives in. Link to comment Share on other sites More sharing options...
brucecahn Posted December 23, 2006 Share Posted December 23, 2006 If it foams too much use less, and use colder water. 65 deg. is better than 68. Link to comment Share on other sites More sharing options...
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