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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. 
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7HF is often used with WCP-2 white contrast paint to improve contrast and inspection sensitivity.

Product Data Sheet

Safety Data Sheet

• Benefits
• Compliance
• Item # - Sizes
• Applications
• Product Properties

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Maximize indication detection

• Find indications of all shapes and sizes thanks to the smallest particle on the market
• Heavy buildup of highly magnetic particles around all leakage fields make for heavy-contrast indications, especially when used with WCP-2 white contrast paint

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

• Inspect a wide range of components without fear of corrosion or specification non-conformance

​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

Standards:  AMS 3043, ASME BPVC, ASTM E1444, ASTM E709, ISO 9934, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/271

• Aerosol can (case of 12) - Item # 01-1580-78
• Aerosol can (1 can) - Item # 01-1580CAN
  

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

NDT Type:  Visible Magnetic Particle Testing
Particle Suspension Vehicle:  Carrier II (Petroleum Distillate)
Required Equipment:  Magnetizing device