SOUNDSAFE® General Purpose Couplant

Soundsafe® is a high-performance, general-purpose ultrasonic couplant for flaw detection and sizing, thickness gauging, flow metering and acoustic emission testing.

This medium viscosity gel couplant is well known for its outstanding performance, excellent corrosion protection, thixotropic properties and comprehensive range of specifications and approvals.

Soundsafe is Pratt & Whitney approved and meets nuclear grade specifications for halogen and sulfur levels.


SKU: N/A Category:

We pride ourselves in providing fast deliveries. However inventory changes rapidly and on occasion some items may not be in stock. If you require an expedited shipment, please contact us via e-mail or call our office to confirm availability of an item. *Nominal lead times vary by product.

Product Information


  • Wide range of specifications and approvals
  • Great surface wetting
  • Thixotropic gel
  • Non-toxic, non-irritating formula
  • Increased acoustic impedance reduces surface noise
  • Good surface wetting for fast, even coverage
  • Clings well to most vertical and overhead surfaces
  • Highest corrosion inhibition
  • Provides good transducer lubrication
  • Slower drying for extended inspection time
  • Nuclear grade
  • Aerospace approvals
  • Hydrogen embrittlement testing

Specification Compliance:

  • API
  • ASTM F519
  • ASME
  • AWS
  • ASTM F945
  • PWA 36604
  • Pratt & Whitney PMC 4385