Flushing a radiator properly
Radiators arrive dirtier than any other part of a loop and they are the hardest part to inspect. This is the standalone procedure — it is step three and four of a full system prep, written out for when you are only doing radiators. One bottle covers two treatments, and this only ever happens outside the case, before the radiator goes anywhere near a running loop.
PrimoChill is not liable for hardware damage incurred during the cleaning process. Use Rad Clean at your own risk, and never inside a running loop.
Cap with plastic fittings only
Fit plastic port caps and o-rings before you put anything in the radiator. Set your metal fittings aside for now.
Rad Clean is formulated for the internal metals of a radiator and is not compatible with nickel or aluminium. Nickel-plated fittings will take cosmetic damage from the dwell.
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