Champion Primaprint RA4 Developer

Champion Primaprint RA4 Developer – Makes 10L Working Solution

Champion Primaprint RA4 Developer is a trusted, single-part concentrate for RA4 colour print processing. Supplied in a format to make 10 litres of working solution, it can also be mixed in smaller quantities as needed. When mixing fresh, a starter solution should be added at the correct proportion to “season” the developer – preventing over-activity and chemical fogging. Full mixing instructions are printed on the bottle.

This developer is suitable for all common RA4 processing methods, including dish processing, JOBO/rotary systems, and 12″ tabletop processors such as the Durst Printo, Thermophot, and Durst RCP.

Tip for Testing Developer Activity:
To check your RA4 developer, fully expose a small piece of paper to light and process it. Once dry, it should be jet black with no trace of blue. Any blue tint indicates exhaustion, low temperature, or too short a development time.