Magnaflux 7HF Tinta magnética negra

Maximise 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 WCP2 (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

• AMS 3043
• ASTM E709
• ASTM E1444
• ASME BPVC
• Boeing PS-21201
• ISO 9934
• MIL-STD-2132
• NAVSEA 250-1500-1
• NAVSEA T9074-AS-GIB-010/271

Defect location: surface and slightly subsurface

Ideal for:

• Detecting fine and medium discontinuities
• Field testing
• Spot inspections
• In-service inspections
• Machined parts
• Light surfaces
• Difficult to reach areas

Defect examples:

• Inclusions
• Seams
• Shrink cracks
• Tears
• Laps
• Flakes
• Welding defects
• Grinding cracks
• Quenching cracks
• Fatigue cracks

Use 7HF with appropriate magnetisation procedure and equipment. For best results, all components, parts, or areas to be tested should be clean and dry prior to testing to provide an optimal test surface and reduce particle suspension contamination.

1. Use in a well ventilated area
2. For best results, apply the white contrast paint (we recommend WCP2) before the 7HF to improve contrast and inspection sensitivity
3. Shake 7HF aerosol can well before use and occasionally during application to ensure suspension uniformity and concentration
4. Hold the can 7 to 9 inches (18 to 24cm) from the area to be tested
5. Using the continuous or residual application method, spray particle suspension over the test area until it is completely covered
6. Inspect under visible light

To verify particle concentration, perform a sensitivity check using a known test standard prior to inspection

Removal

All components, parts, or inspection areas must be properly demagnetised before cleaning to ensure easy particle removal. Cleaned parts may be treated with a temporary film protective coating if longer corrosion protection is required

Store in a well ventilated area away from magnetising equipment and heat sources. Product age, exposure to elevated temperatures, and/or exposure to a strong magnetic field may adversely affect particle redistribution. Refer to Safety Data Sheet for additional storage instructions

• Aerosol can 400ml
• Case of Aerosols 10×400ml
• Bulk 4×5L

Properties
Appearance	Oily liquid and fine particle solution
Colour in visible light	Black
Odour	Odourless
White Light	>500 Lux
Mean particle size*	< 2 microns
SAE sensitivity**	> 6
Flash point	> 93°C
Use recommendations
NDT Method	Magnetic Particle Testing, Nonfluorescent / Visible, Wet Method
Suspension Vehicle	Carrier II (petroleum distillate)
Required Equipment	Magnetising device, UV light source
Temperature Range*	6 to 49°C
Settling Volume	1.20 – 2.40mL
Coverage	1 aerosol can will cover approximately 65ft² (6m²)
Accompanied by	WCP2