Description
ZP-4D - Dry Powder Developer
ZP-4D is a non-combustible Form A dry powder developer ideal for highly sensitive fluorescent liquid penetrant testing. It is supplied ready-to-use and forms a thin film on parts, allowing it to improve the detection of ultrafine discontinuities. ZP-4B is included on the SAE AMS 2644 Qualified Products List (QPL) and is approved for use by Pratt & Whitney.
Benefits
- Fine, uniform developer coverage
- Improves visibility of ultrafine discontinuities
- Non-combustible powder
Accordance
- AECL
- AMS 2644
- AMS 2647
- ASME
- ASTM E1417
- ASTM E165
- BOEING BAC 5423 PSD 6-46 OR 8-4
- BOEING PS-21202
- GE P3TF2
- HONEYWELL EMS 52309
- ISO 3452-2
- MIL-STD-2132
- MIL-STD-271
- NBR NM 334
- PRATT & WHITNEY 4356
- PETROBRAS N-2370
- PETROBRAS N-1596
- QPL SAE AMS 2644
Application
| Defect Location |
Open to the surface |
| Ideal Applications |
Castings, Welds and Forgings, Turbine Components, Critical Components |
| Examples of Defects |
Cracks, Chips, Porosity |
Product Properties
| Particle Size |
< 30 μm |
| Density |
15 lb./ft.3 (240 kg/m3) |
| NPE-free |
Yes |
Usage Recommendations
| NDT Method |
Fluorescent Penetrant Test (Type 1) |
| Method (s) |
a |
| Type 1 Penetrant Methods |
A, B, C and D |
| Recommended Concentration Range |
119 to 239 g/L (1 to 2 lb./gal.) |
| Temperature Range |
40 to 125°F / 5 to 52°C |
| Necessary Equipment |
UV light source |
