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Echo 8 ZH Ultrasonic Couplant

Echo 8 ZH Ultrasonic Couplant

Echo 8 ZH is intended for ultrasonic coupling where elevated temperature, surface roughness or long coupling time frames (such as Ultrasonic Flow Meters) present difficulties. It maintains its paste like viscosity throughout its effective operating range for extended time periods.

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  • Echo 8 ZH’s enhanced acoustic impedance reduces surface roughness acoustic noise.
  • Echo 8 ZH covers a broad range of ultrasonic applications.
  • Echo 8 ZH applications include flow metering and long-term monitoring at elevated temperatures. Ideal for flow meters.
  • Echo 8 ZH resists drying, allowing long-term coupling without reapplication, and is the best choice for long-term monitoring, such as flow metering.


Operating Range
Long term monitoring (sensors): -45˚ to 400˚F (-42˚ to 200˚C)
Short term (minutes to 1 hour): -45˚ to 750˚F (-42˚ to 400˚C)

Auto-ignition Temperature 800˚F (425˚C) Viscosity: Thick paste; 4,000,000 cps Brookfield LV#5, @ 0.3 rpm
Halogens and Sulfur
Less than 100 ppm
Less than 50 ppm

Density 2.2 gm/cm3
Export Classification HS Code 902490; Schedule B: 90249000080
Corrosion Characteristic
Strong ferrous corrosion inhibition

2-fluid oz / 59 ml (volume) metal tube

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