Couplant Selection Chart

SuperSoniX™

• Highest performance gel couplant
• Expanded Ambient Temperature
• Gel couplant, not stringy or sticky
• Gel viscosity remains in place for overhead and vertical surfaces
• Broad operating range
• Slow drying
• Water-soluble
• Improved stability against corrosion salts

UltraSoniX™

• High performance
• Glycerin-free, in accordance with FAA Advisory Circular AC 25-29
• Overhead/vertical application (medium and high viscosity)
• Slow drying
• Fast wetting
• No nitrates, nitrites, glycol ethers or formaldehyde
• Water soluble, acrylic polymer, lower residue than most couplants

EchoPure™

• Couplant of choice for Phased Array Manual UT Inspection (PAMUT). Eliminates dry spots under the wedge and resulting element drop out. Improves defect reproducibility.
• Complies with P91 steel inspection requirement for a water-free couplant.
• Broadest temperature range for water-soluble couplants
• No couplant build up which can result in false indications.
• Very slow drying and salt stable
• Overhead / vertical application
• Excellent transducer lubrication

SoniX™

• Salt stable (boiler and corrosion salts, etc.)
• Strong lubricious coupling film
• Fast Wetting
• No nitrates, nitrites, glycol ethers or formaldehyde
• Glycerin-free
• Water soluble, cellulose based

Forever Wedge

• High viscosity fluid for phased array and angle beam wedge attachment and for coupling delay lines
• Won’t dry, run, leach or dissolve with water or couplants
• Eliminates the need to replace wedge couplant during inspections

Glycerin

• GE approved for the inspection of CFM56-7B engine fan blades in accordance with service buletin SB72-1033
• Packaged from UPS Glycerin, 99+%
• Will not harden on equipment
• Pumpable fluid
• Boiling point 555°F / 290°C
• Compatible with most plastics

Can be corrosive to carbon steel and aluminum. No corrosion effects in most plastics, fiberglass, or composites.

EchoMix^®
Powder Single

• ONE PART powder
• Easily mixed in water
• Good wetting
• Salt resistant
• No formaldehyde
• Compact for shipping and storage
• Water soluble
• Operating range can be extended with propylene glycol antifreeze

Echo Shear Wave

• Transmit normal incidence shear wave
• Water soluble
• Easily removed with water wash
• Low toxicity, non-irritating

Echo Z+

• High acoustic impedance
• Decreases surface noise
• Ideal for rough surfaces and concrete
• Strong ferrous corrosion inhibition

Echo 8ZH

• For flow metering and long term monitoring at elevated temperatures
• Enhanced acoustic impedance
• Reduces acoustic noise from rough surface

VersaSonic^®

• Broad operating range – subzero to 700°F
• Best performing UT couplant between 300 and 750°F
• Fast Response, no wait time
• Low smoke / Low toxicity / No char residue
• Does not contain peanut oil

HiTempco

• Less smoke than VersaSonic
• No residue or varnish
• Fast response, no wait time
• Excellent corrosion inhibition
• Non-toxic, non-irritating

EchoTherm™

• Most economical ultra-high temperature couplant for use above 700°F and in ports.
• EchoTherm contains a plastic polymer which melts and begins to smoke at 750°F
• Leaves plastic residue (char)

EchoTherm Extreme™

• Highest performance extreme temperature couplant
• Fast Response, no wait time
• No plastic polymer
• No plastic char residue
• Broadest operating range
• Low smoke

-40° to 1250°F
-40 to 675°C

Echo 700

• Replaces Sono 900 (discontinued)

600° to 700°F
316 to 371°C

Echo 760

• Replaces Sono 950 (discontinued)

600° to 760°F
316 to 404°C

Echo 775

• Replaces Sono 1100 (discontinued)

700° to 775°F
371 to 413°C

EchoFLOW

• Easily pumped in extreme cold environment
• Environmentally safe, approved for use on the Alaskan Tundra
• Water-soluble.

-40° to 150°F
-40 to 65°C

Echo 3HT

• Water-soluble. No need to remove
• Least expensive intermediate temperature fluid

-30° to 350°F
-34 to 177°C

Echo 6 HT™

• Low-cost silicone-based fluid
• Replacement for peanut, canola and mineral oils
• Low in viscosity, which is maintained over a broad operating range.
• No sticky film, varnish or smoke
• Less subject to under insulation cracking (which leads to a lower auto-ignition temperature)

Echo 8 HT™

• Broadest operating range
• Three Viscosities: thin to very thick liquid for AUT and MUT
• Minimal smoke
• Excellent lubricant
• Low toxicity / Non-irritating
• Auto Ignition is 850°F/454°C