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RE: Ultrasonic cleaning - how long?

Posted by Sondek (A) on February 6, 2021 at 07:17:52

In Reply to: Ultrasonic cleaning - how long? posted by JeffH on February 5, 2021 at 19:57:20:

I have a Kirmuss. It's 2 RPM. The Kirmuss process calls for applying the surfactant solution directly to the record, and then working the surfactant into the grooves with a brush. According to Mr. Kirmuss, the cavitation activity of the machine will blast the surfactant off within ~2 minutes. Once the surfactant is gone the ability of the cavitation to reach the bottom of the groove are substantially reduced. For most records I give them two two-minute baths with surfactant applied before each bath. They then get a distilled water spritz/rinse, and then a manual dry with the jewelers grade microfiber cloth.

With your setup I'd think 4-5 minutes would be sufficient. Of course this will vary based on how dirty the record is to start with.

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