ULTRAGEL II Ultrasonic Couplant “Sonotech”

Since 1976, Ultragel II has been the NDT industry’s most specified and used NDT ultrasonic couplant

Because of its outstanding acoustic performance, chemical characteristics and corrosion inhibition.

Ultragel II is ideal for flaw detection, thickness gaging, flow metering and acoustic emission testing

over extended ambient temperatures.

Temperature Operating Range

-10^๐ to 210^๐F (-23^๐ to 99^๐C)

Benefits

         Holds on vertical and overhead surfaces, fills depressions in rough surfaces

         Excellent wetting characteristics

         Slow drying with good transducer lubrication

         Increased acoustic impedance for reduced surface noise

         Contains glycerine to extend drying time

Safety

         Non-flammable and non-irritating

         No silicones or petroleum distillates

         No heavy metals incorporated into formula

Removal

         Water-soluble; easily removed with a water rinse

         Isopropyl alcohol or 100% ethyl alcohol will also remove Ultragel II

Properties Z(at ambient temperature)

Viscosity

~ 80,000 cps

(Brookfield Helipath Spindle E @ 1.5 rpm)

Velocity

1.65 +/-.05 mm/µsec

Acoustic Impedance

1.8 +/-.05 MRayls

pH

7.8 +/-.5

Ultragel II has been tested and approved to:

         ASTM F519 Hydrogen Embrittlement testing on high strength steel, ASTM F945 Stress Corrosion Cracking on Titanium Alloys

         PWA 36604, or MCL E-205 Type II (ASTM F945), PWA36700/36604 Hot corrosion testing on High Temperature Alloys AMS 5544 (Waspalloy), 5536 (Hastelloy X), 6359 (Ferrous based alloys), 4037 (Aluminum), 5608 (Haynes 188), 5508 (Greek Ascoloy) and 4375 (Magnesium), PWA286 and 275 (gas turbine blade costings), PWA 1484 turbine blade alloy

         Boeing Specifications BAC 5968 (adhesive bonds), BAC 5980 (composites), BAC 5439-PSD622