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Met-L-Chek FP-97A(M) | Level 4 Ultra-High Sensitivity Fluorescent PE Penetrant
The Ultimate Detection Standard for Microscopic Discontinuities
Met-L-Chek FP-97A(M) is an ultra-high sensitivity, Level 4 fluorescent post-emulsifiable (PE) penetrant. It represents the pinnacle of penetrant technology, engineered specifically for the detection of microscopic "tight" defects that would be invisible to Level 2 or Level 3 materials. Utilizing a highly concentrated blend of fluorescent dyes and specialized wetting agents, FP-97A(M) is the standard for the aerospace, space exploration, and nuclear industries where zero-tolerance for failure is required.
Key Performance Features
Ultra-High Sensitivity (Level 4): Designed to reveal the most minute stress corrosion cracks, fatigue cracks, and intergranular inclusions in high-performance alloys.
Exceptional Fluorescence: Produces a brilliant, high-contrast yellow-green indication that remains stable even under the intense UV-A light required for Level 4 inspections.
Superior Capillary Action: Formulated with extremely low surface tension to ensure the penetrant migrates into the smallest surface-breaking defects with rapid dwell times.
Post-Emulsifiable Control: Designed for use with Method B (Lipophilic) or Method D (Hydrophilic) emulsifiers, allowing for a controlled wash process that protects the penetrant trapped within shallow, micro-scale defects.
Advanced Thermal Stability: High resistance to "heat fade" ensures that indications remain bright throughout the drying and developing cycles.
Ultra-High Sensitivity (Level 4): Designed to reveal the most minute stress corrosion cracks, fatigue cracks, and intergranular inclusions in high-performance alloys.
Exceptional Fluorescence: Produces a brilliant, high-contrast yellow-green indication that remains stable even under the intense UV-A light required for Level 4 inspections.
Superior Capillary Action: Formulated with extremely low surface tension to ensure the penetrant migrates into the smallest surface-breaking defects with rapid dwell times.
Post-Emulsifiable Control: Designed for use with Method B (Lipophilic) or Method D (Hydrophilic) emulsifiers, allowing for a controlled wash process that protects the penetrant trapped within shallow, micro-scale defects.
Advanced Thermal Stability: High resistance to "heat fade" ensures that indications remain bright throughout the drying and developing cycles.
Technical Specifications & Compliance
| Feature | Specification |
| Volume | 1 Gallon (3.78 Liters) |
| Sensitivity Level | Level 4 (Ultra-High) |
| Methods | B, C, and D |
| Flash Point | > 93°C (> 200°F) |
| Viscosity | 9.0 – 11.5 mm²/s (at 38°C) |
| Color | Brilliant Yellow-Green (Fluorescent) |
Industry Standard Compliance
FP-97A(M) is listed on the QPL-AMS-2644 and is fully compliant with:
ASTM E-1417 & ASTM E-165
ASME B&PV Code, Section V
Rolls-Royce RRES 90061
Pratt & Whitney PMC 4355
GE P3TF2
Safran Pr-5000
Ideal Applications
Aerospace Propulsion: Inspection of rotating turbine discs, blades, and shafts.
Space Flight Hardware: Critical structural components for rockets and satellites.
Nuclear Power: High-pressure vessel liners and primary cooling circuit welds.
High-Tolerance Machining: Post-grinding inspection of safety-critical automotive or industrial parts.
SKU: 29130-0001
Aerospace Propulsion: Inspection of rotating turbine discs, blades, and shafts.
Space Flight Hardware: Critical structural components for rockets and satellites.
Nuclear Power: High-pressure vessel liners and primary cooling circuit welds.
High-Tolerance Machining: Post-grinding inspection of safety-critical automotive or industrial parts.