Soundsafe® is a high-performance, general-purpose ultrasonic couplant for flaw detection and sizing, thickness gauging, flow metering and acoustic emission testing. This medium viscosity gel couplant is well known for its outstanding performance, excellent corrosion protection, thixotropic properties and comprehensive range of specifications and approvals. Soundsafe is Pratt & Whitney approved and meets nuclear grade specifications for halogen and sulfur levels.
Soundsafe® is available in the following sizes:
| Appearance: | Transparent gel |
| Color: | Colorless |
| Comparative Viscosity*: | 5.25 |
| Actual Viscosity: | ~80,000 cps (Helipath Spindle E @ 1.5 rpm) |
| Long Velocity: | 1.64 cm/sec |
| Impedance: | 1.72 Mrayls |
| Acoustic Performance: | 80 |
| Silicone: | No |
| Glycerin: | Yes |
| Propylene Glycol: | Yes |
| Water Soluble: | Yes |
| Halogens: | < 50 ppm |
| Sulfur: | < 50 ppm |
| Temperature Range‡: | 0° to 200°F (-18° to 93°C) |
| Storage Temperature: | 50° to 86°F (10° to 30°C) |
| Compatibility: | Most composites 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.
Apply a small amount of couplant to the transducer or inspection area before measurement.
Remove couplant immediately after inspection before the couplant dries with water rinse or a combination of water rinse and brushing.
A difficult-to-remove film may form if the couplant is allowed to dry before removal. Remove film by pressure washing, wire brushing or immersing the part in water until the couplant rehydrates and can be washed or brushed off.
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.