Magnaflux Sonotech Ultragel II High Performance Ultrasonic Couplant Gel
BENEFITS
• Clings well to vertical and overhead surfaces
• Fills in depressions in rough surfaces
• Highest corrosion protection
• Slow drying for longer inspection time
• Provides good transducer lubrication
• Increased acoustic impedance reduces surface noise
• Wide range of specifications and approvals
• Thixotropic gel
• Great surface wetting
• Nuclear grade
• Aerospace approvals
• Hydrogen embrittlement testing
Ultrasonic Couplant
Ultragel® II is an industry-leading, high-performance, ultrasonic couplant for flaw detection and sizing, thickness gauging, flow metering and acoustic emission testing.
Ultragel II is widely recognized as the industry’s most dependable and popular ultrasonic couplant. This general-purpose medium viscosity gel is known for its outstanding performance, excellent corrosion protection, thixotropic properties and comprehensive range of specifications and approvals.
Ultragel II is Pratt & Whitney approved and meets nuclear grade specifications for halogen and sulfur levels.
SPECIFICATION COMPLIANCE
• API
• ASTM F519
• ASME
• AWS
• ASTM F945
• ASTM F945 or PWA 36604, MCL E-205 Type II
• Pratt & Whitney PMC 4384
APPLICATIONS
Defect location: subsurface
Ideal for:
• Flaw detection
• Flaw sizing
• Thickness gauging
• Flow metering
• Acoustic emission testing
• Vertical or overhead surfaces
• Weld inspection
• Rough surfaces
• Aerospace inspections
• Nuclear inspections
• Composites
• Turbine blades
• Aircraft wheel maintenance
PROPERTIES
| Appearance | Transparent gel |
| Color | Bright blue |
| Comparative Viscosity* | 5 |
| Silicone | No |
| Glycerin | Yes |
| Propylene Glycol | Yes |
| Halogens | < 50 ppm |
| Sulfur | < 50 ppm |
| Water Soluble | Yes |
* Subjective measure, 0–10 scale where 0 = water, 5 = medium gel, 10 = very thick paste
USE RECOMMENDATIONS
| NDT Method | Ultrasonic Testing |
| Required Equipment | UT equipment, transducer |
| Temperature Range† | -10 to 210°F / -23 to 99°C |
| Compatibility | Most composites and metals‡ |
† Couplant integrity and acoustic performance may decline
beyond these temperature limits.
‡ Not recommended on magnesium
PACKAGING
- 12 fl oz / 354 mL bottles (case of 12) 25-912
- 1 gal / 3.78 L cubitainer 25-901
- 5 gal / 18.9 L cubitainer 25-905
- 55 gal / 208 L drum 25-955
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