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SoniX Ultrasonic Couplant

SoniX Ultrasonic Couplant

SoniX provides a strong, lubricious, water-soluble coupling film as a universal ambient temperature NDT ultrasonic couplant.

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  • Strong ultrasonic coupling film strength.
  • Slow drying for an extended inspection time.
  • Good ferrous corrosion inhibition; compatible with most metals, plastics, and composites.
  • Completely salt stable; will not thin with corrosion, marine environment, or highway infrastructure subjected to de-icing salts.
  • Safety: environmentally benign.
  • Environment and operator-friendly – no formaldehydes, nitrates, or nitrites.


  • Operating Range
    18°F to 120°F (-8°C to 50°C) for most flaw detection and thickness gaging applications.
  • Viscosity
    Medium: 40,000 cps LVT Spindle 4 @ 6 rpm
  • Halogens and Sulphur
    Less than 50 ppm
  • pH
    8.0 nominal at 20°C
  • Compliance
    ASME Boiler & Pressure Vessel Code (T-533)
    ASTM F519
    FAA AC #25-29 (Glycerin-free)
    NAVSHIPS 250-1500
  • Removal Wash with water or wipe with paper or cloth rag before couplant dries. If couplant has dried, pressure wash or use brush and running water.
    1 gal / 3.8 liter, with one bottle, dispensing cap
    5 gal / 18.9 liter, two bottles, dispensing faucet
    7- gallon/26.5 liter pail with lid and pour spout
    55 gal / 208 liter drum

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