Description

ZL-37 - Post-emulsifiable Fluorescent Penetrant - Level 4

ZL-37 is an ultra-high-sensitivity, post-emulsifiable fluorescent penetrant designed to detect fine, narrow discontinuities, essential for critical component applications. Common parts for this test procedure include titanium turbine components, critical high-stress components, and castings. Under a UV-A ultraviolet light source, the indications will appear as a bright yellow-green fluorescence. ZL-37 has a high flash point and is designed for use in open immersion tanks. To remove ZL-37 penetrant from the surface of an inspection area prior to developer application, a Method D hydrophilic emulsifier, ZR10B, is required. ZL-37 can be used with ZP-4B dry powder developer, ZP-14A water-soluble developer in a non-agitated tank, ZP-5B water-suspended developer in a stirred tank, or ZP-9F non-aqueous developer. The ZL-37 is included on the SAE AMS 2644 Qualified Products List (QPL) and is approved for use by Pratt & Whitney.

Benefits

• Glossy, high-contrast indications
• Resists excessive washing
• High flash point
• Qualified Product List (QPL) SAE AMS 2644
• Approved for use by Pratt & Whitney

Accordance

• AECL
• AMS 2644
• ASME
• ASTM E1417
• ASTM E165
• BOEING BAC 5423 PSD 6-46 OU 8-4
• BOEING PS-21202
• ISO 3452
• MIL-STD-2132
• MIL-STD-271
• NAVSEA T9074-AS-GIB-010/271
• NBR NM 334
• PETROBRAS N-2370
• PETROBRAS N-1596

Application

Product Properties

Usage Recommendations