The coupling fluid CF-4H-950F is a high temperature coupling fluid for ultrasonic wall thickness gauges. It enables accurate measurements on surfaces with an extended temperature range from 316 ºC to 404 ºC.
The coupling fluid CF-4H-950F provides coupling for high-temperature thickness gauging and will maintain acoustic coupling at high temperatures beyond 15 seconds to give ample time to obtain thickness readings. In most cases, the signal strength increases with time to the point of the couplant’s thermal decomposition.
Extended open time window for longer inspections or to optimize thickness readings at high temperatures
Non-toxic, non-irritating formula
Excellent corrosion inhibition
Temperature range from 316ºC to 404 ºC
Very slow drying; allows for long-term coupling without reapplication