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  1. #11

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    I am looking for somewhere in GuangZhou (Canton in Cantonese) or Shenzhen to buy it. Have sent an e-mail to Champion hoping that they will send by sea if not be plane, but no reply yet. How long is the shelve life of RA-4 replenisher cos do not want to go to Mainland China often.

  2. #12

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    VERY LONG.
    CatLABS of JP
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    www.catlabs.info | https://www.facebook.com/CatLABS.of.JP | www.jobo-usa.com

  3. #13

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    http://www.championphotochemistry.co...-asia_asia.php

    Calling is better then emailing. Try the China number, and get the phone of your local HK dist.
    CatLABS of JP
    Darkroom resources and service

    www.catlabs.info | https://www.facebook.com/CatLABS.of.JP | www.jobo-usa.com

  4. #14

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    If I have to use the chemicals for large scel processors such as the Kodak RA4 RT, I probably have to mix small batch every since I cannot finish all a time. The problem is how long the concentrates can be stored if the bottles are opened. I think the developer is susceptible to oxidation. Also, should a starter be used if I do in a Jobo CPP-2?

  5. #15

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    The starter question has been discussed at length in other threads.
    RA4 concentrates, even in open bottles have a long shelve life, you can always use a floating lid to minimize oxidation.
    CatLABS of JP
    Darkroom resources and service

    www.catlabs.info | https://www.facebook.com/CatLABS.of.JP | www.jobo-usa.com

  6. #16
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    Quote Originally Posted by DREW WILEY View Post
    Because Tetenal wants to do business in the US. It's that simple. But we have multiple suppliers for RA4 chemistry.
    The issue, is that several chemicals in the process are considered corrosive enough to be classed as dangerous goods. B&H can get Tetenal, because Tetenal is willing to do the extensive paperwork, and underwrite the cost of international DG shipping, for a large customer like B&H.
    Paul Schmidt
    See my Blog at http://clickandspin.blogspot.com

    The greatest advance in photography in the last 100 years is not digital, it's odourless stop bath....

  7. #17

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    Thanks, my understanding from other threads is that starter is not necessary if I pour away the chemicals if used once only.

    Any idea of the estimated shelve life if say kept in 50F or room temp?

  8. #18
    RPC
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    The purpose of starter is to add to replenisher to make working solution, whether you are using the working solution one-shot or many times. Many users on APUG have reported that they get acceptable results without adding starter to RA-4 replenisher. You can just add the starter as instructions say, or try it without and see if the results are acceptable to you.

    If you store developer or replenisher in completely filled glass bottles, you can get many months, even years of life from it. High quality plastic may work as well.

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