Magnetic Particle Testing (MPI) – Wet Fluorescent Powder Suspension | 400ml MR76F

MR®76F Magnetic Powder Suspension – Fluorescent (Aerosol)

Ultra-Sensitive Oil-Based Fluorescent Magnetic Particle Suspension

Description
MR®76F is a high-performance, ultra-sensitive oil-based magnetic particle suspension aerosol designed for fluorescent magnetic particle inspection. It delivers clear, strong, background-free crack indications under UV light for maximum flaw visibility.
Packaged in a ready-to-use aerosol, MR®76F is perfect for on-site inspections, remote assessments, and environments where bulk handling is impractical. The wide, even spray ensures uniform coating of large or complex surfaces, streamlining the inspection of pipelines, tubing, and heavy structural components.
The formulation uses MR’s Super Wetting Technology (SWT) and Encapsulation Technology for superior particle mobility, ensuring strong particle build-up, exceptional sensitivity, and stable particle suspension.

Key Benefits

• Strong particle build-up for reliable detection

• Clear, bright fluorescent indications under UV light

• Cost-effective flaw detection in ferromagnetic materials

• Ready-to-use for fast application

• Consistent, repeatable inspection results

• No odour and very low toxicity

Features

• Ultra-sensitive detection capability

• Proprietary Encapsulation Technology for stability

• Super Wetting Technology (SWT) for enhanced sensitivity

• Minimal to no background for precision crack detection

• Wide, controlled spray pattern

• Excellent particle mobility

• Toluene-free

Applications

Defect Location: Surface to slightly sub-surface
Test Surface Type: Super-finished to semi-finished
Environment: Dark to semi-dark
Defects Detected:

• Inclusions, seams, shrink cracks, tears

• Laps, flakes, welding defects

• Grinding cracks, quenching cracks, fatigue cracks

Usage Instructions

• Method: Magnetic Particle Inspection – Wet method

• Carrier Media: Oil (AMS 2641 – Type 1)

• Equipment Required: Magnetising device, UV light source

• Temperature Range: -10°C to +65°C (14°F to 149°F)

Specifications & Approvals

• Standards: ASME Code V, Art. 7 | DIN ISO 9934 (BS 5044) | ASTM E709 | RCC-M | PMUC (EDF)

• Aerospace Approvals: AMS 2641 Type 1 | AMS 3045 | AMS 3046 (Aerosols) | ASTM E3024 | ASME BPVC | MIL-STD-2132 | MIL-STD 271 | ASTM E1444/1444M

Physical & Chemical Properties

• Appearance: Brown oily liquid

• Particle Size: 1 – 3 µm

• Sediment (1h): 0.2 – 0.4 ml/100 ml

• Colour in Visible Light: Brown–Green

• Colour in UV Light: Yellow–Green

• Base: Hydrocarbon

• pH: N/A

• Odour: Characteristic

• Flash Point (Slurry): >93°C / 200°F

• SAE Sensitivity: 8–9

Available Packaging:

• 400 ml aerosol can