Best results were to pre-clean in ultrasonic using O.C.S. H2002U ultrasonic cleaner at an 8:1 dilution ration heated to 160°F.  Clean for 5 minutes, scrape out softened residue, clean ultrasonically for 5 more minutes, blow shp air through nozzle removing residue and moisture.

Contact us  for the details on setting up the aqueous cleaning system & solution that will give you the best results on your centrifuge nozzles.