Ink-maker’s contamination problems solved Seal type: Netzsch GRD 80 Fast turnaround mechanical seal diagnosis, repair and improved operation recommendations for an Asian offset ink manufacturer experiencing frequent seal failures Client challenge A Malaysian offset ink manufacturer suffered regular bead mill start-up problems when the Netzsch GRD80 pressurised double mechanical seal used on the mill was compromised by viscous product that contaminated the seal (see inset) and support system. This caused significant seal damage and unplanned outages. NASH’s advice was requested into the causes, plus the feasibility of inspectingand repairing the latest failed seal on an urgent basis. Our response Based on initial photographic evidence provided by our service partner in Singapore, NASH was a

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