Magnaflux Sonotrace 40 Ultrasonic Couplant

CAD $36.00

This product is now discontinued.  Limited quantity still available.

Sonotrace® is a general-purpose ultrasonic couplant for flaw detection and thickness gauging applications. This glycerin-free couplant is a great choice for applications requiring minimum halogens, sulfur and low melting point metals, and offers good performance at a lower price point.



Sonotrace comes in two different viscosities, Sonotrace 30 which is a medium-thick gel and Sonotrace 40 which is slightly more viscous.


  • Contains humectants to retard drying for longer inspection time
  • Very good corrosion inhibition
  • Nuclear grade
  • Good surface wetting to quickly cover oily or dirty surfaces
  • Water washable for easily removal
  • Silicone free
  • Glycerin free
  • Slower drying
  • Good price-to-performance value

Ideal For

  • Thickness gauging
  • Flaw detection
  • Aerospace inspections
  • Nuclear inspections
  • Composites
  • Weld inspection
  • Aircrafts
  • Airframes

See manufacturers product sheet:  Product Sheet – Magnaflux Sonotrace 40 Ultrasonic Couplant

Additional information

Weight N/A
Dimensions N/A

1 gal, 5 gal, 55 gal


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.