The test object is coated with a solution that contains a visible or fluorescent dye. Excess solution is then removed from the surface of the object but leaving it in surface breaking defects. A developer is then applied to draw the penetrant out of the defects. With fluorescent dyes, ultraviolet light is used to make the "bleed out" fluorescent brightly, thus allowing imperfections to be readily seen. With visible dyes, vivid color contrasts between the penetrant and developer make "bleed out" easy to see.

• Both visible red dye penetrant and fluorescent penetrant inspections at client locations as well as at our lab.
  
  
• Fluorescent Penetrant Inspection is available at our lab both aerosol can and tank type facility meeting the requirements of ASTM E165/E1417.
  
  
• Facility can test up to 2000 components per day for larger production.
  
  
• All procedures are approved by ASNT NDT Level III.