Sonotech Sonotrace

Sonotech Sonotrace

Sonotech Sonotrace

SONOTRACE is a moderately priced, ambient temperature, water-based, glycerine-free ultrasonic couplant for flaw detection and thickness gaging, where Halogens, Sulfur and low melting point metals must be kept to a minimum and glycerine is to be avoided.

SONOTRACE meets the Halogens and Sulfur requirements specified in NAVSHIPS MIL-STD-767. SONOTRACE is available in three versions:

Grade 30:

Offers good wetting ability and ferrous corrosion resistance.


Contains an ultraviolet fluorescent tracer that assures complete coverage and overlap, as well as complete removal when observed with a black light. Sonotrace UV's fluorescent tracer properties are helpful, where inspection coverage requires review by a governing body or management.


Contains a daylight green tracer that can be seen with the naked eye or with the aid of a black light.


Contains additional pigment for inspections that require a high visibility couplant. Sonotrace Bright is a custom blend developed specifically for the United States Air Force, to improve visual fluorescence.


  • Good surface wetting capability
  • Low residue -- easy to remove
  • Best corrosion inhibition of Mid Temperature Range couplants
  • Maintains a good price to performance ratio
  • Contains humectants to retard drying
  • Meets nuclear specifications for halogens, sulfur, and low melting point metals
  • Meets Boeing specifications BAC5968 and BAC5980
  • Does not contain glycerine
  • Water-based and water-soluble

    Technical Specifications:


    1.50±.05 mm/µsec

    Acoustic Impedance

    1.60±.05 MRayls

    Temperature Range

    25°F to 190°F / -4°C to 87°C

    Water soluble






    Halogens (as Chlorides)

    All Grades: < 50 ppm


    Sonotrace 30 < 50 ppm

    Sonotrace UV: < 50 ppm

    Sonotrace UVG/Bright: < 100 ppm

    Low melting
    point metals

    Minimal to none

    * Viscosity equivalents: 4,000k = thick paste, 550k = stiff gel, 150k = pourable gel and 20k = thick liquid

    Please call for quantity price

    Note: Minimum Order is $60.00

    Description Part # Saved Price Select Option Add to
    Sonotech Sonotrace 30 - 1 gallon cube (minimum 2) UT-SO-42-901 $50.00
    Sonotech Sonotrace 30 - 5 gallon cube UT-SO-42-905 $171.00
    Sonotech Sonotrace 30 - 55 gallon UT-SO-42-955 $871.00