Tetenal Monoline RA-4 CD S is a colour developer starter for RA-4 machine printing, 1.5 litres.
What it is for
A starter is not a tray developer but a component of a replenished machine line. It commissions the processor tank, bringing a fresh solution to the state it holds in steady running, after which the replenisher maintains it.
How to dilute it
Storage
Sealed concentrate keeps well but dislikes air: the emptier the bottle, the faster it oxidises. Decant the remainder into a smaller bottle, or displace the air — that is what gets a concentrate to its last measure.
How it compares
This is for someone running a minilab or a replenished processor. For tray printing at home, take the ADOX RA-4 kit, which is self-contained.
