Product Data Sheet – ZYGLO ZL-15B, ZL-19, ZL-60C, ZL-60D, ZL-67B, ZL-56
Water-washable Fluorescent Penetrants
ZYGLO® ZL-15B, ZL-19, ZL-60C, ZL-60D, ZL-67B and ZL-56 are fluorescent water-washable penetrants with excellent controlled washability over a wide temperature range. With a UV-A light source, indications will appear as a bright green-yellow fluorescence.
Our water-washable fluorescent penetrants are used in a wide range of sensitivity applications, from ultra-low to ultra-high. They exhibit outstanding penetrating characteristics, giving you maximum reliability in locating surface-open flaws and defects.
- Bright indications
- Excellent washability
- Wide range of sensitivity applications
Defect location: open to surface
- Rough surface finish
- Cold shuts
A blend of non-ionic surfactants, petroleum distillate and fluorescent dyes.
|NDT Method||Penetrant Testing, Fluorescent|
|Storage temperature||10°C to 30°C|
|Usage temperature||5°C to 55°C (bulk); -5°C to 50°C (aerosol)|
|Coverage||20 – 30m² per litre; 10 – 15m² per aerosol|
|Developers||SKD-S2, ZP-4B, ZP-5B, ZP-9F, ZP-14A|
|UV lamps||EV6000, ST700|
|Form and colour||Green-yellow liquid|
|AMS 2644 class||Type 1, Method A|
|Flash point||> 93°C|
|Sulphur content||< 300 ppm|
||< 300 ppm|
||< 50 ppm|
||< 100 ppm|
||Meets AMS 2644|
Product Properties (continued)
|Density||0.86 g/cm³||0.86 g/cm³||0.88 g/cm³||0.92 g/cm³||0.95 g/cm³||1.01 g/cm³|
|Viscosity at 38°C||5.2 mm²/s||5.6 mm²/s||7.0 mm²/s||10.6 mm²/s||20.0 mm²/s||19.0 mm²/s|
|AMS 2644 sensitivity||Level 0.5 (Ultra-low)||Level 1 (Low)||Level 2 (Medium)||Level 2 (Medium)||Level 3 (High)||Level 4 (Ultra-high)|
|EN-ISO 3452 sensitivity||–||Level 1 (Low)||Level 2 (Low)||–||Level 3 (High)||–|
Like all Magnaflux materials, our water-washable fluorescent penetrants are closely controlled to ensure batch-to-batch consistency, optimum process control and inspection reliability.
|ASME B & PV Code, Sec V||Yes||Yes||Yes||Yes||Yes||Yes|
|EN ISO 3452-2||–||Yes*||Yes||–||Yes||–|
|Pratt & Whitney||–||PMC 4350-2||PMC 4351-8||PMC 4351-2||PMC 4360-10||–|
|Rolls Royce RRP 58003 (CSS 232)||–||–||Yes||Yes||Yes||Yes|
|SAFRAN Pr 5000/In 5000||–||–||Yes||Yes||–||–|
* water absorbency 6.10, requirement of >5% not met
Instructions for Use
Pre-clean the test part and allow to dry. The surface must be free from oil, grease and any other contaminant.
Apply the penetrant by immersion dip, brush, flow on, conventional or electrostatic spray. The test area must be completely covered with penetrant.
Allow contact time of 2 – 5 minutes minimum. 10 minutes should be adequate for most situations, although specific process specifications may require longer – check the controlling process specification (where applicable).
Remove excess penetrant by thoroughly spraying the test part with clean water at 10°C – 40°C. This should be carried out under a UV(A) source so you can monitor the penetrant removal.
Dry the test part by placing in a controlled recirculating warm air dryer at a temperature of 50°C – 70°C.
Apply a developer to maximise the sensitivity of the penetrant and to provide a white contrasting background. There are three types of suitable developer:
- Dry powder: Free-flowing, lightweight powders which are applied to the dry component by powder storm, dusting, electrostatic spray or puffer.
- Solvent-based: Quick-drying materials which are applied to the dry component by spraying.
- Aqueous or water-based: Apply before drying by dipping or spraying. Note: to maximise penetrant sensitivity, do NOT leave parts in aqueous developers for any length of time.
Inspect your test part using a suitable UV source. Any defect indications will fluoresce a bright green-yellow when exposed UV(A) light at a peak wavelength of 365 nm.
If required, you can clean your test part after inspection. Developer residues can be removed either by wiping with a cloth or by a water and detergent wash. Penetrant residues can be removed by vapour degreasing or solvent soak.
Health & Safety
Review all relevant health and safety information before using this product. For complete health and safety information, refer to the relevant Safety Data Sheets.
Packaging and Part numbers
Part number 056C061
Part number 056C062
Part number 056C185
Part number 056C186
Part number 008A008
Part number 056C205
Part number 056C206
Part number 056C010
Part number 056C011
Part number 056C034
Part number 056C035
Part number 056C201
Part number 056C202