RA-4 chemistry???

Discussion in 'The Darkroom' started by Bobby Ironsights, Oct 29, 2007.

  1. Bobby Ironsights

    Bobby Ironsights TPF Noob!

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    What'n the hell is RA-4 chemistry? I've seen the advertisement on freestyle....colour chemistry as low as 20 degrees C!

    But I didn't find a wikipedia article, on it, and that's unusual.
     
  2. Alpha

    Alpha Troll Extraordinaire

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