A highly-sensitive water-based magnetic particle fluid for non-fluorescent (visible) wet method magnetic particle testing to locate fine and medium discontinuities on finished parts. MV-740 provides clear, strong indications due to the heavy buildup of the highly magnetic particles. The product is ready-to-use, so no dilution is required.
MV-740 is often used with WCP-2 white contrast paint to improve contrast and inspection sensitivity.
| Properties | |
| Appearance | Water-based solution with fine particles |
| Color in Visible Light | Black |
| Odor | Odorless |
| Mean Particle Size | < 2 microns |
| SAE Sensitivity | > 6 |
| Flash Point | > 212 °F (100 °C) |
| Use Recommendations | |
| NDT Method | Magnetic Particle Testing, Nonfluorescent / Visible, Wet Method |
| Suspension Vehicle | Water |
| Required Equipment | Magnetizing device |
| Usage Temperature | 25 to 120 °F (-4 to 48 °C) |
| Freezing Point | 25 °F (-4 °C) |
| Storage Temperature | 50 to 86 °F (10 to 30 °C) |
| Settling Volume | 1.20 – 2.40 mL |
| Coverage | 833 ft2 (77 m2) |
| Specification Compliance | |
| ASTM E709 | |
| ASTM E1444 | |
| ASME BPVC | |
| Boeing PS-21201 | |
| ISO 9934 | |
| MIL-STD-2132 | |
| NAVSEA 250-1500-1 | |
| NAVSEA T9074-AS-GIB-010/271 | |