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General description

LK 31-73 is a ready-to-use suspension of fluorescent magnetic powder in hydrocarbons for magnetic particle testing, wet method.

LK 31-73 is a low-sulfur and low-halogen product, in compliance with standards.


10 l cans
Part Number: 02087300
400 ml spray
Part Number: 03087310

In Compliance with

  • UNI EN ISO 9934-2
  • ASME V Art. 7
  • ASTM E709
  • ASTM E1444
  • AMS 3044
  • AMS 3045
  • AMS 2641


  • Excellent sensitivity.
  • Excellent fluorescent contrast.
  • Excellent particle mobility.
  • Long-lasting particles.
  • Easily dispersible.

Product Properties

Color in UV light
Bright yellow-green
Average particle size
3 μm

User Recommendations

NDT Method
Fluorescent magnetic particle inspection, wet method
Shelf life

3 years at T between 5°C and 45°C, in a dry place safe from direct sunlight

Usage temperature
< 48°C
Preliminary cleaning
Recommended accessories according to standards ASTM E1444 ASTM E709 EN ISO 9934-2

Sedimentation glass tube – Magnetic Stripe Card Type 2000 – Reference Block Type I / MTU Test – Reference Block Type II – Flexible Laminated Strips – Tool Steel Ring AS 5282 Type and Ketos 01 Type – Octagonal flat plate

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    CGM CIGIEMME S.p.A. designs and manufactures a complete range of Magnetic Testing (MT) and Penetrant Testing (PT) systems, from simple equipment to highly customized systems, also offering a complete range of consumables, tools, accessories and instruments used in the MT and PT fields.
    CGM CIGIEMME S.P.A. - N°REG.IMPR., C.F. E P.I.: 05732470967 - N° REA: MI -1843908 - CAPITALE SOCIALE: € 500.000.00 I.V. - powered by 3Bit