HM-220

FLUORESCENT PENETRANT

HM-220

FLUORESCENT PENETRANT

Description of HM-220

MANUFACTURER: SHERWIN (USA) / NDT Europa (NL)

Type I, method A & C, level 1, according to AMS 2644 and ISO 3452-2, water washable fluorescent penetrant designed for detecting surface defects.

Companion products :

  • DR-60, N120 degreasers
  • DR-62, N106A removers
  • D-90G dry developer
  • D-100, R60, D-106 developers

Precautions

Transport / Handling: Refer to Material Safety Data Sheet (MSDS)Storage : Keep away from moistureTemperature range: 0°C à 50°CKeep packaging closed after taking out some of the product

Directions for use

This describes the basic process, but they may need to be amended by the user to comply with applicable specifications and/or inspection criteria provided by the contracting agency.Before any application, it is necessary to remove all stains that could clog the defects with a suitable process.Application:Apply HM-220 only to clean, dry surfaces by spraying, flowing, brushing or dipping.In this case, it may be better to dip parts during 1/3 of contact time and allow the penetrant to drain from the part surface back into the penetrant tank for 2/3 of contact time.Total dwell time: 5 to 30 minutes.Removal:Use a ambient temperature water wash at pressure between 30 and 200 kPa, hydraulic or hydropneumatic gun (air pressure between 0,1 and 2 bars according to applicable specifications).To avoid washing entrapped penetrant from surface flaws, do not use high water pressures and temperatures, or prolonged washing and scrubbing.Removal is done under UV-A light to be sure there is no more fluorescent background at the end.Drying:Circulating warm air (70°C). Using pressurized air, infrared lamp or warm air pistol is strongly not recommended.Developing:HM-220 is self developing. Nevertheless it is recommended to use a developer as listed above.Inspection:It shall be done in a darkened area (visible light level less than 20 lux) and under sufficient UV-A light (minimum 1000μW/cm², if possible >= 1500μW/cm²). Actinic blue possible.

Approvals

  • SPECS
    • ASME
    • ISO 3452-2
    • QPD-AMS 2644
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Access the product technical and safety data sheets here, and download them in one click.

HM-220
Technical sheetPDF / Download
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D-100

NON AQUEOUS WET DEVELOPER

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