Penetrant Emulsifier - Sensitivity Level 4
Post-Emulsifiable Liquid Penetrant Remover
EMU-L4 is a liquid penetrant remover which works in conjunction with NEON-L4 liquid penetrant and PD3 dry powder developer as a level 4 liquid penetrant system. EMU-L4 is supplied as a concentrate for dilution in water and meets the requirements of to AMS 2644 to a maximum of 20% v/v.
Available in 25L bulk containers.
Method Of Use
|Pre-Cleaning and Drying||Surface contamination such as rust, paint residues, grease, scale etc. must be fully removed. Ensure the component is completely dry and not too hot or cold, i.e. 10-35ºC.|
|Penetrant Application||Apply NEON-L4 to the surface by either immersion, flow-on, electrostatic, aerosol or conventional spray, or brush-on. Ensure a suitable dwell period and allow the component to drain as necessary. The combined application and drainage period should be at least 5 minutes (less for ceramics), up to 20 minutes.|
|Excess Penetrant Removal||The excess penetrant is removed by water rinsing, by either air-agitated water rinse tank, spray rinse tank or manual spray rinse. Rinse for 60 seconds with a water temperature of 15-35ºC and spray pressure of 1.4-1.7 bar.|
|Emulsification||Immerse the component in EMU-L4 emfulsifier at 5-20% v/v with slight agitation for a suitable time to remove the penetrant from the surface, avoiding under-washing which could result in too much background fluorescence, or overwashing which could result in missed indications. Drain for 30 seconds.|
|Water Rinsing||EMU-L4 emulsifier is removed by water rinsing, by either air-agitated water rinse tank, spray rinse tank or manual spray rinse. Rinse for 60 seconds with a water temperature of 15-35ºC and spray pressure of 1.4-1.7 bar.|
|Drying||Drying is typically carried out in a recirculating oven at 50-60ºC for a maximum of 15 minutes, though longer times may be required for larger components.|
|Development||PD3 dry powder developer can be applied by spraying or dust storm cabinet. Allow at least 10 minutes after application to ensure proper development of the defects.|
|Defect Inspection||Inspection is carried out under black light in a darkened area. The UV-A brightness at the inspected surface should be >1000 μW/cm². Defects will appear as bright yellow traces.|
|Temperature Range||15 to 35°C|
|Shelf Life||Bulk - 36 Months|