G251 is a universal MQ normal contrat developer for neutral black tones on contact and enlarging papers.

Also suitable for films and plates developed in a tray.
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Use at full strength. Diluted 1:1 will give softer results provided that the exposure time is increased and the development time remains unaltered.

Development times at 20°C: “Ridax”, “Artona” — 1 minute; “Gevatone”, “Vittex” — 1–1.5 minutes; “Gevarto”, “Gevabrom” — 1.5–2 minutes; “Replica 23” plate — 3 minutes; “Diapositive” plate — 3–4 minutes.