Ultrasonic cleaning is one of the most effective methods for deep-cleaning records because it removes contaminants from inside the grooves without physically scrubbing the surface. Unlike traditional brush-and-fluid methods that only clean the surface, ultrasonic systems use high-frequency sound waves transmitted through a liquid bath to dislodge microscopic debris, dried residues, mould release compounds, smoke particles, skin oils, and embedded dust from the groove walls.

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An ultrasonic cleaner contains transducers attached to a tank filled with deionized water mixed with surfactant. When activated, the transducers vibrate at ultrasonic frequencies typically between 35 kHz and 120 kHz. These vibrations create rapid cycles of pressure changes in the fluid, this process is called cavitation.

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The implosion of millions of microscopic bubbles create jets of energy that penetrate the grooves and loosen and remove contaminants that ordinary wiping cannot reach.​ The cleaning effect comes from the liquid movement and cavitation rather than from abrasion, therefore minimising wear on the record surface.

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However, unfortunately the process will not repair physical damage on the record surface or within the grooves, so any audio artifacts caused by scratches, scuffs or pressing defects will still be present after cleaning.

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Prices for ultrasonic cleaning are as follows, however if you have a significant amount of records to do, please get in touch as a great deal can always be done.