Magnaflux Ultragel II Ultrasonic Couplant

USD $3.39USD $2,696.23

4 ounce size discontinued.  Limited quantities still available.

Ultragel® II is an industry-leading, high-performance, ultrasonic couplant for flaw detection and sizing, thickness gauging, flow metering and acoustic emission testing. Ultragel II is widely recognized as the industry’s most dependable and popular ultrasonic couplant. This general-purpose medium viscosity gel is known for its outstanding performance, excellent corrosion protection, thixotropic properties and comprehensive range of specifications and approvals.



Ultragel II is Pratt & Whitney approved and meets nuclear grade specifications for halogen and sulfur levels.


  • Clings well to vertical and overhead surfaces
  • Fills in depressions in rough surfaces
  • Highest corrosion protection
  • Slow drying for longer inspection time
  • Provides good transducer lubrication
  • Increased acoustic impedance reduces surface noise
  • Wide range of specifications and approvals
  • Thixotropic gel
  • Great surface wetting
  • Nuclear grade
  • Aerospace approvals
  • Hydrogen embrittlement testing

Ideal For

  • Flaw detection
  • Flaw sizing
  • Thickness gauging
  • Flow metering
  • Acoustic emission testing
  • Vertical or overhead surfaces
  • Weld inspection
  • Rough surfaces
  • Aerospace inspections
  • Nuclear inspections
  • Composites
  • Turbine blades
  • Aircraft wheel maintenance

For more information, see manufacturer’s product sheet:  Product Sheet – Magnaflux Ultragel II Ultrasonic Couplant

Additional information

Weight 47 lbs
Dimensions 12 × 13 × 12 in

1 Gallon, 12 fl oz, 12 fl oz, case of 12, 4 fl oz, 4 fl oz, case of 12, 5 Gallon, 55 Gallon Drum