Echo Ultrasonics Signal™ High Acoustic Impedance Couplant

Signal™ is a high acoustic impedance ultrasonic couplant designed to deliver superior signal quality with minimal noise. It is ideal for ultrasonic inspections on rough surfaces, including castings, rough bar stock, and fiberglass, providing better penetration at frequencies above 5 MHz.

With a gel-like viscosity, Signal™ stays in place on overhead and vertical surfaces, ensuring consistent coupling during inspections. Its broad operating range makes it the most versatile water-based couplant, while its slow-drying, water-soluble formula allows for easy cleanup after testing.

Signal™ is perfect for low to intermediate temperature inspections, phased array applications, and wedge testing, helping technicians achieve high signal-to-noise ratios and reliable, accurate ultrasonic measurements.

Specifications 

Features

• Signal is the ultrasonic couplant for better signal with less noise
• Improves signal to noise ratio through superior acoustics
• Inspect rough surfaces such as castings, rough bar stock and fiberglass
• Better penetration above 5 MHz
• Gel viscosity remains in place for overhead and vertical surfaces
• Broadest operating range for a water-based couplant
• Slow drying
• Water-soluble
• Easy clean up