Fotospeed RA50 Rinse Aid is a highly concentrated liquid designed to greatly reduce surface tension to allow the easy dispersion of water from the surface of photographic materials without damaging the emulsion.
- Used in the final rinse, it noticeably promotes streak free drying of film and shortens drying times
- RA50 should be added to the final rinse in the ratio of 1 part RA50 to 200 parts water. i.e. 5mls /ltr of water
- Similar to Kodak Photo Flo or Ilford Ilfotol Wetting Agent
- RA50 concentrate will keep for several years in sealed bottles