Overview Reviews Product Description This general purpose ultrasonic couplant gel holds on to horizontal and overhead surfaces. The R7950 is designed to work with ultrasonic thickness gauges and is ideal for iron, steel, aluminum and titanium surfaces. Reed Instruments Catalog R7950 Datasheet Product Videos Custom Field Product Reviews Write a Review Write a Review × Reed Instruments Ultrasonic Couplant Gel 250ml R7950 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *