We Checkline Europe B.V. would like to use cookies and similar technologies in order to optimize your shopping experience and this requires your consent. By clicking on the "Accept cookies" button you agree to our use of cookies and similar technologies. If you do not agree, you can refuse the use or customize settings for the respective cookies by clicking on the button "Cookie Settings".You also have the possibility to specify that only certain cookies, which we use on our website, should be activated. This banner will be displayed until you have selected your cookie preferences. If you decide against the use of cookies, we will not use cookies nor similar technologies, except those that are essential for the proper functioning of the website. Click here for our privacy policy

CF-AN Coupling Fluid

CF-AN is a corrosion-preventing couplant for non-destructive testing and thickness measurement with ultrasonic waves.

CF-AN Coupling Fluid is necessary because sound energy at the ultrasonic frequencies typically used for ultrasonic testing is not effectively transmitted through air. Aside from damping effects, the air is a serious acoustic impedance mismatch with regard to both transducers/probes and test materials. Even an extremely thin air gap between the transducer/probe and the test material will prevent efficient sound energy transmission and make conventional testing impossible.

Optimal transmission requires an ultrasonic couplant without air bubbles that can reflect, scatter, and attenuate sound waves.

Temperature Range: -5 to 97 ºC

  • Used to create an ultrasonic coupling between the probe and material to be measured
  • Available in different volumes - 125ml / 250ml / 500ml / 1ltr / 5ltr / 25ltr
  • Temperature Range: -5 to 97 ºC

Application:Technical couplant for ultrasonic testing
Form:Fluid, high-viscosity
Color:Green, clear
pH-value at 20°C:8-9
Melting-point:-5° C
Boiling point:> 97° C
Density at 20°C1,022 kg/l ±5%
Viscosity at 20° C30000 mPas ±5%
Chlorid & Fluorid< 0.0250 %
Sulfur< 0.0250 %

Related Products

CF-4H High Temperature Coupling Fluid

  • Temperature Range:
    0° to 600° F
    -18° to 315° C

More details

CF-4H High Temperature Coupling Fluid

CF-4H-950F High Temperature Coupling Fluid

  • Temperature range from 316ºC to 404 ºC
  • Very slow drying; allows for long-term coupling without reapplication

More details

CF-4H-950F High Temperature Coupling Fluid


Buy Now

CF-AN-125ml Coupling Fluid 125ml Bottle
€ 9,95 
CF-AN-250ml Coupling Fluid 250ml Bottle
€ 15,00 
CF-AN-500ml Coupling Fluid 500ml Bottle
€ 24,50 
CF-AN-1L Coupling Fluid 1 Liter Bottle
€ 42,50 
CF-AN-5L Coupling Fluid 5 Liter
€ 175,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available: 1 - 3 days, Delivery time: 1 - 3 weeks, special order request

Request offer
Your information request is sent!
We'll contact you as soon as possible.