Oil-Based Visible Magnetic Particle Suspension
A highly-sensitive oil-based magnetic particle aerosol for nonfluorescent (visible) wet method magnetic particle testing to locate fine and medium discontinuities on finished parts.
7HF provides clear, strong indications due to the heavy buildup of the highly magnetic particles. The convenient aerosol packaging is ideal for field testing, spot inspections and places where bulk processing is impractical, and the wide spray pattern makes it easy to cover large areas for faster processing during remote inspections of tubing, piping and large structures.
7HF is often used with WCP-2 white contrast paint to improve contrast and inspection sensitivity.
Container Size & Part Number
Aerosol can (case of 12) 01-1580-78
Defect location: surface and slightly subsurface
- Detecting fine and medium discontinuities
- Field testing
- Spot inspections
- In-service inspections
- Machined parts
- Light surfaces
- Difficult to reach areas
- Shrink cracks
- Welding defects
- Grinding cracks
- Quenching cracks
- Fatigue cracks
NDT Method: Magnetic Particle Testing, Nonfluorescent / Visible, Wet Method
Suspension Vehicle: Carrier II (petroleum distillate)
Required Equipment: Magnetizing device
Temperature Range: 55 to 120°F / 13 to 49°C