What type of chemistry promotes the most effective cavitation?
Cleaning chemical selection is extremely important to the overall success of the ultrasonic or megasonic cleaning process. The selected chemical must be compatible with the base metal being cleaned and have the capability to remove the soils that are present. It must also cavitate well. Most cleaning chemicals can be used satisfactorily with ultrasonics or megasonics. Some are formulated especially for use with ultrasonics and megasonics. However, the non-foaming formulations normally used in spray washing applications should be avoided. Highly wetted formulations are preferred. Many of the new petroleum cleaners, as well as petroleum- and terpene-based semi-aqueous cleaners, are compatible with ultrasonics and megasonics. Use of these formulations may require some special equipment considerations, such as increased ultrasonic or megasonic power, to be effective.
