— The Stuart Hunt & Associates Team.
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 |
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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.
