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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.

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

Benefits

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

Ordering Information

Aerosol can (case of 12)01-1580-78

Product Properties

NDT TypeVisible Magnetic Particle Testing

Particle Suspension VehicleCarrier II (Petroleum Distillate)

Required EquipmentMagnetizing device

Applications

Ideal ApplicationDetecting fine and medium discontinuities, Difficult to reach areas, Field testing, In-service inspections, Light surfaces, Machined parts, Spot inspections

Defect ExamplesFatigue cracks, Grinding cracks, Inclusions, Laps, Quenching cracks, Seams, Shrink cracks, Tears, Welding defects