Sorry Tim but that would come under trade alas and can't be posted on the forum unless you have a trade membership I will need to delete it.
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Sorry Tim but that would come under trade alas and can't be posted on the forum unless you have a trade membership I will need to delete it.
Just a quick net nanny warning for anyone new to using isopropyl alcohol: It evaporates easily from solution and the vapour is highly flammable at low temperatures, so its use in an ultrasonic bath at much above room temperature carries a fire risk, especially if a standard brushed dc motor is going to be used to turn the record.
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Thanks for posting this Bernard. I'm very tempted....
By degassing the fluid for 5 mins on first use - does this require leaving the fluid to sit for 5 mins at 40C, then use it?
Good comment. I would not worry about the DC motor. However, if used in a kitchen, one needs to be careful.... better to open the windows!
I am using the Ultrasonic tank lid after use to prevent having to top-up the solution. I also want to gradually experiment reducing the volume of IPA in the mix.
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It requires switching the ultrasonic ON for 5 mins at 40C just before cleaning.
Some info on the benefits of degassing ...
https://www.sonicsonline.com/blogs/u...sonic-cleaners
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Thanks, that's useful. One more question.....I can understand that filtering the solution, wiping the tank clean and refilling it with the filtered solution would be sensible after a few cleaning sessions. Is there any advice on how often it's advisable to use new fluid? Of course if its dirty then new solution is needed but does it degrade? If the solution was left sitting in the tank for a couple of weeks or longer, is this considered to matter?
I partly answered in post #9 but I will add that I have successfully cleaned around 70 records with no impact on the sound so far.
I am planning to clean up to 150-200 records before filtering the solution with a 1 micron filter.
Once filtered, the solution can be used many times over with some top-up.
The tank has a lid, which can be used if the solution is left in the tank for a period. You can also store in a 5L plastic bottle.
Hope this helps.
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This method of vinyl cleaning looks very interesting and i'm very tempted to give it a go, the initial post was very informative however the use of IPA had me a little confused at 1st until i realised people were talking about isopropyl alcohol and not Indian Pale Ale :cool:, seriously though wouldn't this work with a pre mix vinyl cleaning fluid such as the Knosti stuff?
Bernard, may I offer you enormous thanks for posting this very detailed description and list of components. I’ve been meaning to build myself an ultrasonic cleaner for a couple of years now but have yet to get around to it. Thanks to you I have just had the tank delivered (rather a nicely made thing it is too). So, another project for me to add to the list :).