Buy the smallest C41 Flexicolor and RA4 kits that PDISUPPLY.COM (Rochester, NY) has. (NO, I don't get a commission.) I use the RA4 RT (Roller Transport.) developer/replenisher I use fixer and potassium ferricyanide but you can use their respective blixes. Keep the blix components separate in their respective containers. You should have NO problems with these components EVEN IF they start forming particles with time. Honestly, I have used these after years of storage.
Store the developer concentrates for the C41 Flexicolor in either glass or PET plastic FILLTED to the rim. I think that the Part A of the FLexicolor does NOT have to be airtight so you can keep it in its original container.
For the RA4 RT developer store the Part C in either the original container or GLASS. PET plastic will corrode with this highly alkaline product. Parts A and B MUST, MUST, MUST, MUST be stored AIRTIGHT in either PET plastic or glass. Get glass marbles to take up the slack. For TINY quantitites get 50ml liquor bottles or tiny glass bottles and get really small marbles (arts and crafts stores) to take up the slack. (NOte: PEPSI soda bottles have sheer sides without embossed design: these are PET plastic and can be slighly squeezed to let out air: leave no airspace.) These chemicals won't go bad and you won't spend hundreds of dollars. But WATCH OUT for the paper: that is the Achilles' Heel here. Even with simple refrigeration it starts to go bad after about a couple of years. Buy only enough paper to last a year and store it cold. - David Lyga
NOTA BENE: see my post (today) on extreme C41 dilutions.
Last edited by David Lyga; 12-30-2012 at 04:29 PM. Click to view previous post history.