Skip to Content

1.800.661.4591

Request a Quote Online Training

Echo Ultrasonics Echo Spot Weld™

Echo Spot Weld™ is a specialized ultrasonic couplant developed for accurate inspection of spot welds. Its acoustic impedance, viscosity, and removal properties are optimized for high-frequency inspections, making it the preferred couplant for 10–15 MHz array go/no-go testing.

The gel formulation stays in place on overhead and vertical surfaces, ensuring consistent coupling during inspections. Echo Spot Weld™ offers a broad operating range, slow drying, and a water-soluble formula, allowing for easy cleanup and safe removal after testing.

Ideal for technicians performing spot weld inspections in automotive, manufacturing, and industrial applications, Echo Spot Weld™ combines precision, reliability, and ease of use for high-frequency ultrasonic testing.

 

Specifications 

Operating Range

-18˚ to 224˚F (-28˚ to 107˚C)

Viscosity Medium flowable gel
Halogens and Sulfur

Less than 50 ppm

pH

8.0 nominal at 20°C

Packaging
  • Carton of twelve 12 oz / 355 ml bottles
  • 1 gallon / 3.8 liter cubitainer
  • 5 gallon / 19 liter cubitainer
Features
  • Echo Spot Weld Couplant has an acoustic impedance, viscosity and removal characteristics that are optimized for spot weld inspections.
  • Couplant of choice for high frequency (10-15 MHz) array go-no-go inspection of spot welds.
  • Gel viscosity remains in place for overhead and vertical surfaces
  • Broad operating range
  • Slow drying
  • Water-soluble
  • Easy to remove
Download Spec Sheet