S2, S3 and S4 fluorescent dye penetrant

Fluorescent dye penetrant is a non-destructive test applicable to steel, aluminium alloys and titanium alloys.

Scope of application

Steel, aluminium alloys and titanium alloys.


  • Dye penetrant test booth
  • All sensitivities (medium, high and ultra-high)


COFREND (French Non-Destructive Test Committee) COSAC (sub-commission responsible for aircraft inspection): level 1 and 2 qualified operators.

Airbus France, Airbus UK, Dassault Aviation, General Electric, Israel Aircraft Industries, Pratt & Withney, SABCA, SAFRAN Group