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Echo Ultrasonics Echo 6 HT™

Echo 6 HT™ is a low-cost, silicone-based high-temperature ultrasonic couplant designed to replace plant-based oils such as peanut, canola, or mineral oils. Its slow-drying, low-viscosity formulation provides reliable ultrasonic coupling while leaving no residue, forming no film or varnish, and avoiding gumming up bearings or equipment.

Ideal for mechanical AUT equipment, Echo 6 HT™ also provides long-term lubricity and excellent corrosion inhibition on ferrous metals. It maintains a stable viscosity across a broad operating range and is compatible with all metals and most plastics, ensuring safe and effective inspections in high-temperature applications.

Specifications 

Operating Range -40° to 675°F (-40° to 357°C)
Viscosity 90 to 110 cSt, Fluid
Auto-ignition Temperature     789° F (421° C)
Sound Velocity 1015 m/second
Halogens and Sulfur Less than 50 ppm
Specific Gravity 0.97
Weight/Gallon

8.91 pounds / 4.04 kg net

Packaging
  • 1 gal / 3.8 liter rigid container
  • 5 gal / 18.9 liter rigid container
  • 55 gal / 208 liter drum
Features
  • Echo 6 HT won’t form a film or varnish nor will it gum up bearings or equipment.
  • Echo 6HT serves as a long-term lubricant for mechanical AUT equipment.

  • Echo 6HT maintains a low, stable viscosity across a broad operating range.

  • Echo 6HT provides excellent corrosion inhibition on ferrous metals.

  • Echo 6HT is compatible with all metals and most plastics.

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