Rapid fixer cube

Hi,

I have a 5 gal cube of kodak rapid fixer and 72 oz bottle of part b hardener.

The only thing i dont have is mixing instructions. i tried kodaks web site, not helpful.

 

can anyone help me?

 

thanks

-ian

prepressure@mac.com

My mixing instructions are easy for developing film. Use part a. Throw away part b, the hardener. Most modern emulsions don't need hardening. Just increases the time it takes to fully wash the negatives. I use the fixer diluted 1:3.

I wouldn't throw away the part b, in case you ever want to use some of the older-style European films that need hardening, or perhaps to harden Polaroid negatives.

In our shop; the chaps that dont use the part B just get fired. Customers who still want process camera work want the same process that was worked for decades; not a chaps experiment. Useage of the hardener depends and the ratio used depends on what plates; films; or papers are used. One chap didnt like stop bath either; and the fixer would go flat quickly; due to the Kodagraph developer ruining the fixer. Then one gets brown stained customer returns weeks; months down the road; due to jackass changing the process; and letting fixer contaminated prints out the door. If you change a process that works well for decades; be aware what is happening; run experiments too. Let the boss know that you are doing something different; having to rework a huge job months later is costly; customers are not impressed at all. <BR><BR>Part B is an acid; probably not the thing to just toss down the drain. If you do try the acid; it gets poured into the water mix; NOT the water into the acid in the mixing bucket. If done the wrong way; it can fly up into your eyes; this is basic chemistry lab 1001; but need repeating. <BR><BR>Just like a Kitchen; one needs to have fun; experiment; but not get the customer/prints sick. Keep track what works well; developer; stop; fix; film type. Lack of usage OR Usage of acid fix; and stop is as old as photography. BOTH camps can be correct; find out what works for YOUR materials.

<a href="http://www.ruf.rice.edu/~ctlee/SAFETY_PRECAUTIONS.pdf">Rice University dinky PDF<BR><BR><i>"When diluting acids, ALWAYS pour acid into water SLOWLY"</i></a><BR><BR>@FIN<BR><BR>SK