Applus+ around the world
Close Countries Panel
  • Belgium
  • Brazil
  • China
  • Czech Republic
  • France
  • Germany
  • India
  • Indonesia
  • Italy
  • Japan
  • Malaysia
  • México
  • Poland
  • Russia
  • Slovakia
  • South Africa
  • South Korea
  • Spain
  • Sweden
  • Taiwan
  • Thailand
  • Turkey
  • UK
  • United Kingdom
  • USA
Close Divisions Panel
Energy & Industry Division
Industrial and environmental inspection, vendor inspection, technical assistance, non-destructive testing (NDT) and technical staffing for all type of industries.
Logo RTD Logo VELOSI Logo NORCONTROL Logo Intec Logo K2
Logo Ingelog Logo JAN Logo Kiefer Logo Novotec Logo NRay
Logo PTJava Logo Skc Logo XRay Logo Qualitec
Laboratories Division
Multidisciplinary laboratories.Testing and engineering for product development. Conformity testing and product certification. SYSTEMS CERTIFICATION.
Logo Applus Laboratories Logo Applus Certification
Automotive Division
Statutory vehicle inspection services and emission & gas testing solutions worldwide.
Logo Applus Automotive Logo Applus ITVE Logo NCT Logo Applus Bilsyn Logo K1
Logo Technologies Logo ITVs Logo Riteve
IDIADA Division
Design, engineering, testing and homologation services for the automotive industry worldwide.
Logo Applus IDIADA

Liquid Penetrant Testing Visible

Visible dye penetrant is typically red and uses a white developer to draw the dye back to the surface from inside the discontinuities by 'wicking' or capillary action; this is often referred to as the 'colour contrast' method. It is highly visible under natural light and may be used on a variety of materials. It is generally not as sensitive to very small discontinuities as the fluorescent method. However, it does not require special lighting conditions, therefore crews do not have to carry UV-A Lamps, blackout shades or power generators.
Visible dye penetrant testing is a straightforward three-step process consisting of the dye, the remover and the developer (3 cans of product make it easy to transport and utilise). Applus+ only uses penetrant supplies from reputable manufacturers who ensure their products meet code requirements. Our technicians are trained in accordance with a written practice that complies with ASNT-SNT-TC-1A. Applus+ has qualified technicians and staff available to meet its clients’ needs as challenges arise.
Visible dye penetrant is commonly used in industries such as oil exploration/production and refining, automotive and maritime, among others. It may be used on a variety of non-porous materials including forgings, castings, ferrous and non-ferrous metals, ceramics, glass and some plastics. This method is highly portable and can be used almost anywhere.
Liquid Penetrant Testing Visible
Site map