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Liquid Penetrant

Penetrant testing

Penetrant Testing (PT) also called Dye Penetrant Inspection (DPI) or Liquid Penetrant Inspection (LPI) is a non-destructive testing method used to locate surface breaking defects. A dye is applied to the material and allowed to penetrate. The dye is then removed and a developer is then applied. The developer draws out any dye which has been held by the surface defect. This is then made visible to the operator either under ultraviolet or white light.

Liquid penetrant testing by Pudsey Test & Inspection, based in Bradford, West Yorkshire, we service throughout the UK. Call today for more information on 01274 656 736

Pudsey Test & Inspection Ltd offer penetrant testing using all techniques, as follows:

  • Fluorescent
  • Colour contrast
  • Penetrant line for batches
  • One-off or batch quantities: welds, castings, forgings, machined components
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