7HF
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.
Benefits
Maximize indication detection
Convenient to use
- Inspect in all conditions without the need for darkness or UV lights
- The visible particles come in a convenient, aerosol format to be easily carried and used in the field
Wide application versatility
Features
- Clear indications under visible light
- Heavy particle buildup
- Great particle mobility
- Protects parts and equipment against corrosion
- Broad spray pattern provides even surface coverage over large areas
- Superior surface wetting
- Very small particle size
- Works in visible light
- Oil-based formula
- Very low toxicity
- Low odor
NDT Type: Visible Magnetic Particle Testing
Particle Suspension Vehicle: Carrier II (Petroleum Distillate)
Required Equipment: Magnetizing device
Ideal Application: Detecting fine and medium discontinuities, Difficult to reach areas, Field testing, In-service inspections, Light surfaces, Machined parts, Spot inspections
Defect Examples: Fatigue cracks, Grinding cracks, Inclusions, Laps, Quenching cracks, Seams, Shrink cracks, Tears, Welding defects