Electrical and Electronic wastes (RoHS and WEE)

Liquid penetrant testing is a non-destructive method used to detect surface breaking defects in any nonporous material. Liquid penetrant is applied to the surface and is drawn into defects by capillary action. Once a preset dwell time has passed, excess penetrant is removed and developer applied to draw out penetrant from defects. Visual inspection is then performed. Visible and Fluorescent Liquid Penetrant Examinations are Non-Destructive methods of revealing discontinuities that are open to the surfaces of solid and essentially non-porous materials, ferrous or non-ferrous.


  • bulletGrinding cracks
  • bulletHeat affect zone cracks
  • bulletPoor weld penetration
  • bulletHeat treatment cracks
  • bulletFatigue cracks
  • bulletHydrogen cracks
  • bulletInclusions
  • bulletLaminations
  • bulletMicro shrinkage
  • bulletGas porosity
  • bulletHot tears
  • bulletCold shuts
  • bulletStress corrosion cracks
  • bulletIntergranular corrosion
  • bulletSection of material with a surface-breaking crack that is not visible to the naked eye.
  • bulletExcess penetrant is removed.
  • bulletDeveloper is applied, rendering the crack visible.
Dye Penetrant