Q&A: Magnaflux ZL-15B
What is ZL-15B?
Q: What type of penetrant is ZL-15B?
A: ZL-15B is a post-emulsifiable fluorescent penetrant, Type 1, with Level 3 high sensitivity. It requires an emulsifier (Method B, Lipophilic or Method D, Hydrophilic) before developer application.
Q: Why is ZL-15B considered post-emulsifiable?
A: Post-emulsifiable penetrants like ZL-15B do not contain built-in emulsifiers. This allows more precise control of background removal and prevents over-washing of shallow defect indications.
Applications & Uses
Q: What kind of parts is ZL-15B used for?
A: ZL-15B is ideal for critical components in aerospace, power generation, and other industries where fine surface defects must be reliably detected. Common applications include titanium, nickel, aluminum, and ferrous alloys.
Q: What types of defects can it reveal?
A: It detects surface-breaking cracks, seams, laps, and porosity, especially fine or tight defects on smooth, machined surfaces.
Key Properties & Performance
Q: What specifications does ZL-15B meet?
A: ZL-15B is on the Qualified Products List (QPL) for SAE AMS 2644. It also complies with AMS 2644, ASTM E1417, ASTM E165, ASME BPVC, MIL-STD-2132, MIL-STD-271, Boeing BAC 5423 PSD 6-46, BAC 5423 PSD 8-4, PS-21202, and NAVSEA T9074-AS-GIB-010/271.
Advantages & Limitations
Q: What are the advantages of using ZL-15B?
A:
- High sensitivity for critical inspections.
- Controlled background removal reduces false indications.
- Consistent, bright indications under UV light.
- Works well with a wide variety of aerospace alloys.
Q: What are the limitations or concerns?
A:
- Requires a separate emulsifier step, increasing processing time.
- May not be suitable for rough or porous surfaces.
- Over-emulsification may remove defect indications if not carefully controlled.
Safety & Handling
Q: What are the hazards associated with ZL-15B?
A: ZL-15B can cause skin and eye irritation. It may be harmful if inhaled or swallowed. Proper PPE (gloves, protective clothing, and eye protection) must be used.
Q: What safe handling practices should be followed?
A:
- Use with adequate ventilation; avoid inhaling vapors.
- Wear gloves, protective clothing, and safety glasses.
- Wash thoroughly after handling; launder contaminated clothing.
- Follow local regulations for spill cleanup and waste disposal.
Environmental Considerations
Q: What are the environmental impacts of ZL-15B?
A: May cause long-term adverse effects in aquatic environments. Spills should be contained and prevented from entering drains or waterways. Dispose of waste according to federal, state, and local guidelines.
