HM-704 Fluorescent Penetrant

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HM-704 Fluorescent Penetrant quantity

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Description

HM-704 Properties

HM-704 is a fluorescent penetrant intended for the search of surface defects. It is is Type 1 Method A Level 4 pre-emulsified fluorescent penetrant according to AMS 2644 and ISO3452-2.  This product is scentless with very high biodegradability due to its synthetic base, this allows relatively easy washing while leaving an acceptable background nose, given the high levels of sensitivity offered.

Application:
Apply HM-704 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 quick, ambient temperature water wash at tap pressure to rinse HM-704 from the part surface. 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 UVA light to be sure there is no more fluorescent background at the end.

Drying:
A recirculating oven set no higher than 80°C is suggested. Leave part in oven just long enough to evaporate surface moisture. Using pressurized air, infrared lamp or warm air pistol is strongly not recommended.

Developing:
HM-704 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 1000 μW/cm2, if possible more than 1500 μW/cm2), it is also possible to use actinic blue light.

Appearance	Green Liquid
Fluorescence	Green-Yellow
Flash Point	> 93°C
Temperature Range	0°C – 50°C

Available in 25L or 200L.

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Additional information

Option	200L, 25L