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High Acoustic Impedance Ultrasonic Couplant

High Z is a high acoustic impedance couplants to reduce surface noise and improve coupling performance on curved, rough, pitted and corroded surfaces.

This couplant will often facilitate flaw inspection and thickness gauging in situations where no other couplant will work. High Z works on surfaces other couplants won’t, such as curved, pitted, heavily corroded or rough surfaces, including concrete.

High Z comes in two different viscosities, High Z LV which is a thin, no-flow gel and High Z HV which is an extremely thick gel-paste.

Benefits

  • Water-washable for easy removal
  • Highest acoustic performance
  • Lower surface noise for superior coupling performance on rough/curved surfaces
  • Good corrosion inhibition
  • Moisture resistant
  • Long-term coupling
  • Specifications 
  • Container Size & Part Number 
  • Applications 
  • Use Recommendations 

Specifications

  • API
  • ASME
  • AWS

Container Size & Part Number

High Z LV

4 fl oz / 118 mL tube       58-T04

High Z HV

4 fl oz / 118 mL tube       59-T04

 

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Applications

Defect location: subsurface

Ideal for:

  • Flaw detection
  • Thickness gauging
  • Angle beam inspection
  • Long-term coupling
  • Rough/pitted or corroded surfaces
  • Curved surfaces
  • Concrete
  • Ceramic
  • Brick

 

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Use Recommendations

NDT Method: Ultrasonic Testing

Required Equipment: UT equipment, transducer

Temperature Range: 0 to 200ºF / -18 to 93ºC

Compatibility: Most composites and metals

 

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