Ultrasonic Couplants

Ultrasonic testing involves imparting ultrasonic energy from a transducer into a part and back to assess the integrity of that part. Ultrasonic energy does not travel very well through air, so if there is air between the transducer and the part, very little energy is transferred and poor readings result.  

  • Couplants fill in the gaps, eliminating the air in the space between the part and the transducer, and transmitting more ultrasonic energy into and out of the part.  
  • The surface texture of the part is important, as rough part surfaces tend to have more spaces for air to exist between the part and the transducer, and therefore have even greater need for a couplant to be used. 

Magnaflux couplants are formulated and approved for use in NDT applications, with multiple options available to fill in gaps on various part surfaces and under different conditions. View the Industrial Ultrasonic Couplant Comparison guide here. 

Why Choose Magnaflux Ultrasonic Testing Couplants?

  • Slow drying time, allowing for longer, in-depth inspections
  • Products made for a wide variety of applications, including aerospace and varied temperature settings
  • Line of thixotropic products (Ultragel II, Soundsafe) for vertical and overhead surfaces
  • Compliance with leading industry standards
  • Non-toxic, non-irritating formulas keep operators safe without reducing accuracy