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MR®304
Water Conditioner

MR®304
Water Conditioner

MR®304 is a general-purpose blend of wetting agents, corrosion inhibitors and anti-forming agents water-conditioning powder to enhance surface wetting and magnetic particle dispersion stability in water-based magnetic particle suspensions. It is added to the water bath and mixed until dissolved prior to addition of magnetic powder (oil & water based).

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  •   Odourless
  •   White granular powder with no self fluorescence
  •   Superior wetting - provides excellent particle mobility
  •   Optimal corrosion protection
  •   Does not flash
  •   Excellent anti-foam properties

    Additional information
PropertiesAppearance – white granular powder
Chemical Composition – mixture of wetting agent; anti-foam emulsion & corrosion inhibitor
Basis – borax
Odour – odourless
ApprovalsASTM E709
ASTM E1444/1444M
Recommended UsageNDT Method – Magnetic Particle Testing (wet method)
Usage Temperature – 41°F to 131°F / +5 °C to +52 °C
Storage Temperature – 41°F to 113°F / +5 °C to +45 °C
    How it Works

Magnetic particle inspection (MPI) is a non-destructive testing (NDT) method used to detect surface and slightly subsurface cracks in ferromagnetic materials such as iron, steel, and nickel. The process involves magnetizing the part to be inspected and then applying appropriate magnetic particles in the form of a dry powder or suspension to the surface of the part. The magnetic particles are attracted to areas of flux leakage, which are areas where the magnetic field is distorted by the presence of a crack or other defect creating a visible indication that can be used to identify and evaluate the nature and extent of the defect.

The application of the magnetic powder creates a visible indication of the location and shape of the crack or other defect. The powder accumulates at the location of the defect, forming a visible indication or "magnetic particle indication." This indication is then examined by a trained inspector using ultraviolet light or other illumination to identify the precise location, size, and orientation of the defect.

    GHS Category
Bulk Aerosol
 
    FAQs

MPI (Magnetic Particle Inspection) testing is a non-destructive testing method used to detect surface and slightly subsurface defects in ferromagnetic materials such as iron, nickel, and cobalt. It is commonly used in industries such as aerospace, automotive, and oil and gas.

Yes, there are different versions of black ink avaiable depending on the form and suspension liquid.

MR76S comes in various versions (Version A, B, C, D, S) depending on the sediment levels. The standard MR76S (Version A) comes with a sediment of 1.2-2.4 ml/100ml (1 h) according to the ASME standard.

The black ink is typically applied to the surface being inspected by either spraying or brushing it on.

Yes, the black ink used in MPI testing is generally safe to use. However, it is important to follow the manufacturer's instructions and safety precautions when handling and using the ink. An oil free version of MR76S is available as MR76SR

Yes, other colors such as red, blue, and green can be used in MPI testing. However, black ink is the most commonly used color because it provides the highest contrast and is therefore the easiest to interpret.

MR76S is designed to offer excellent particle mobility reducing the background even when oversprayed.

SWT is a proprietary technology used in preparing MR76S which enhances the particle mobility, reduces the background, super wets the carrier media for quick indications and increases particle build-up, thereby increasing the sensitivity significantly.