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.
Ultragel II is available in these packages:
| Appearance: | Transparent Gel |
| Color: | Bright Blue |
| Actual Viscosity: | ~80,000 cps (Helipath Spindle E @ 1.5 rpm) |
| Comparative Viscosity*: | 5 |
| Long Velocity: | 1.65 cm/sec |
| Impedance: | 1.80 Mrayls |
| Acoustic Performance: | 85 |
| Silicone: | No |
| Glycerin: | Yes |
| Propylene Glycol: | Yes |
| Water Soluble: | Yes |
| Halogens: | < 50 ppm |
| Sulfur: | < 50 ppm |
| Temperature Range‡: | -10° to 210°F (-23° to 99°C) |
|
Storage Temperature: |
50° to 86°F (10° to 30°C) |
| Compatibility: | Most composite and metals‡ |
* Subjective measure, 0 - 10 scale where 0 = water, 5 = medium gel, 10 = very thick paste
‡ Couplant integrity and acoustic performance may decline beyond these temperature limits.
‡ May darken or discolor magnesium.
Apply a small amount of couplant to the transducer or inspection area before measurement.
Remove couplant with water rinse (warm/hot water recommended), isopropyl alcohol or 100% ethyl alcohol.
Store couplant in the original container. Do not freeze. Store out of direct sunlight. Keep container closed when not in use. Never put unused couplant back into the original storage container. If pumps or valves are used to dispense bulk couplant, wash them thoroughly between drums to avoid contaminating new product.