Product Data Sheet – ZYGLO ZP-4B
Dry Powder Developer
ZYGLO® ZP-4B is a free-flowing, white fluffy powder supplied ready to use. It forms a thin white film for a contrasting background around penetrant indications, which enhances the visibility of ultra-fine discontinuities.
- Even, thin developer coverage
- Enhances visibility of ultra-fine discontinuities
Defect location: open to surface
- Turbine components
- Critical components
A mixture of inert developing powders.
- ASME B & PV Code, Sec V
- ASTM E165/E165M-18
- ASTM E1417/E1417M
- EN ISO 3452-2
- Pratt & Whitney PMC 4356-4
- Rolls Royce RRP 58003 (CSS 232)
- SAFRAN Pr 5000/In 5000
|Form and colour||Fluffy white powder|
|AMS 2644 class||Form a – Type 1|
||< 200 ppm|
||< 350 ppm|
|Corrosion||Meets AMS 2644|
Like all Magnaflux materials, ZP-4B is closely controlled to ensure batch-to-batch consistency, optimum process control and inspection reliability.
|Storage temperature||10°C to 30°C|
||5°C to 55°C|
|Water-washable penetrants||AL-4B, ZL-15B, ZL-19, ZL-60C, ZL-60D, ZL-67B, ZL-56|
|Post-emulsifiable penetrants||ZL-2C, ZL-27A, ZL-37|
Instructions for Use
Before using any developer, ensure the test surface is clean, free from excess penetrant, and dry. Residue from water-based penetrants can be removed with a water spray; solvent-based penetrants by wiping with a solvent cleaner.
With visible penetrants, cracks will appear as red lines and porosity as spots. If you see a general reddish colour or pink film, that means the penetrant was not completely removed.
With fluorescent penetrants, indications will fluoresce bright yellow/green under UV light. If you see a general greenish film, that means the penetrant was not completely removed.
Apply by dusting, powder puffer, powder storm or electrostatic spray.
Allow a development time of at least 10 minutes before inspecting under UV(A) light.
After inspection, developer residue can be removed by wiping with a cloth, or by a water and detergent wash.
Packaging and Part Numbers
Part number 055C022
Part number 055C023
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 Sheet.