20B is a highly-sensitive magnetic particle premix powder for locating fine discontinuities in high volume applications, such as forging, casting, stamping and welding. It is an easy-to-use dry premix formula of 14A Fluorescent Powder and WA-2B water conditioner containing wetting agents and corrosion inhibitors designed to be added to a water bath. The ultra-sensitive 14A particles provide clear, bright, fluorescent green indications under ultra-violet black light for unbeatable inspection quality and accuracy, and the water conditioners provide corrosion protection and complete surface wetting. 20B is a great choice for baths which need to be changed out frequently due to drag-in or heavy-use and is ideal for in-process testing to detect cracks, seams, inclusions, laps, tears and flakes. 20B meets all major industry and NDT specification requirements, including automotive, API and ASTM standards.
Recommended concentration is 1.5 oz./gallon of water (11.25 grams/liter).
Increases indication detection with 14A particles
Minimizes inspection time
Improve Inspection Consistency and Reliability
Convenient to Use
| Product Properties | |
| Appearance | Dry powder |
| Color in Visible Light | Brown |
| Color in UV Light | Fluorescent yellow-green |
| Odor | Mild |
| Mean Particle Size | 6 microns |
| SAE Sensitivity | 8-9 |
| Use Recommendations | |
| NDT Method | Magnetic Particle Testing, Fluorescent, Wet Method |
| Suspension Vehicle | Water |
| Required Equipment | Magnetizing device, UV light source |
| Usage Temperature | 42 to 120 °F / 6 to 48 °C |
| Storage Temperature | 50 to 86 °F / 10 to 30 °C |
| Settling Volume | 0.10 – 0.40 mL |