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   Home » Analog Playback» Sensible record cleaning: vinyl piranhas and record Vaseline (54 posts, 3 pages)
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  »  New  Stop buying the records cleaning fluid?..  I think it is all about oil....  Analog Playback Forum     3  21183  09-28-2008
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02-12-2018 Post does not mapped to Knowledge Tree
Posts 1
Joined on 02-13-2018

Post #: 51
Post ID: 24689
Reply to: 24650
Ultrasonic Cleaning
 Interesting thread.  I went down this rabbit hole a long time ago, and I think I have emerged, or at least can see light at the end.  I started with a Nitty Gritty, generic alcohol water mix and fine nap brush.  I noticed a positive difference, but felt there was room for improvement.  I added a  Spin Clean before the NG, and noticed a further improvement, but still not quite what I was looking for.   Records were cleaner overall, and on many the noise floor was lower the and the noise floor of my system.  I could hear fade outs or gain roll off down to nothing.   But I could still hear a low level whoooshh- shhhhhh sound on many LPs as the background noise floor.   I read a lot of reviews and posts for ultrasonic cleaning, and the more I found out, the more I realized that US could be a significant improvement.

I recently put together a DIY US cleaner using a Chinese 9L US tank and a Vinyl Stack to spin the LPs in the tank  After much research, I settled on Rushton's diy cleaning mix using Tergitol, Hepstat 256, 91%+ isopropyl, distilled water.  After experimentation with times, method etc I now use the following procedure:

Clean with Spin Clean to remove all surface dirt, and most embedded dirt
US Clean for 15 min at .3 RPM (1 rev per 3 min) in 35 degree C water, using the mix described above
Nitty Gritty Vac Dry

My results are outstanding.   I can hear an audible difference from the addition of the US step.  Cleaner, clearer and more distinct transients.  Much better HF extension, more air and ambiance around musicians.  And almost complete removal of the whooosssh- shhhhhh background noise.  I know it is a cliche to say that "a veil was lifted" but the additional clarity I hear is just that.

What prompted my addition to this thread, was several comments made at the beginning of the thread, specifically regarding embedded dirt that remained impervious to several methods of deep cleaning.  My theory is that dirt becomes embedded, and maybe chemically bonded to the walls at the bottom of the groove and into the very small undulations representing leading edges of transients and HF content.  The use of specific cleaners and the US cycle breaks down and removes this last layer of debris.

My evidence is the surprising amount of effluent in the bottom of the US tank after cleaning  a dozen LPs.   Remember, all records are cleaned via Spin Clean and rinsed before immersion in the US tank.  The effluent represents debris NOT removed by the Spin Clean alone.

It is not all lollipops and unicorns.   Greater clarity also makes some types of groove damage more audible.  And on some LPs I experience an increase of pops and tics as I get closer to the inner groove.  I think the later issue can be addressed by more careful drying.

Anyway just my experience; yours may vary.
02-13-2018 Post does not mapped to Knowledge Tree
Gdansk, Poland
Posts 458
Joined on 01-07-2006

Post #: 52
Post ID: 24693
Reply to: 24689
No such luck
I must be somehow unlucky here. I recently added a US cleaner from Audiorevita +DIOY 1micron filtering. I use Rushton's recipe with 5% IPA +0.13% Photoflo + Deionezed water, 15mins, 35C, 1.5" spacing, 60% power@40kHz, 3rpm (yes, the motor is quite fast). Then pure water rinse + vacuum+ 3% Etanol final  rinse + vaccum + destating using an ion blower. I tried it on several vinyls previously cleaned on my Okki Nokki vac in a 4 step process (2 brushings with IPA + 2 rinse).

...no effect to talk about so far. The background as noisy as it was, all pops& clicks plaguing me there, sometimes even seems more. I hav a feeling that sometimes I lost a bit of directness of the sound. Perhaps the vinyls I selected are permanently worn out (all are 2nd hand bought God only knows where) and US cleaning in some cases actually reveals more of the damage? Have to experiment more.


02-14-2018 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,190
Joined on 10-12-2006

Post #: 53
Post ID: 24694
Reply to: 24693
Some Grease?
Short of an Audio Desk Ultra-Sound unit, like Mark's, I've been thinking about trying some stuff I found called "Crud Buster", because it seems to clean other stuff without messing things up. The label says it contains: Ethoxylated Alcohol, Sodium Metasilicate Pentahydrate, Glutamic acid, N-di-acetic acid, tetra-sodium salt, and Sodium Hydroxide.  Maybe the Glutamic acid is some sort of "grease", and I'm hoping this will "lubricate" the record surface just enough, as I believe extreme drying effects exacerbate the "scratchy" sound.  Of course, as we've beaten to death already, too much grease = too little "traction" for the stylus.

Paul S
02-18-2018 Post does not mapped to Knowledge Tree
Romy the Cat

Boston, MA
Posts 9,620
Joined on 05-28-2004

Post #: 54
Post ID: 24698
Reply to: 20207
A nice video

"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
Page 3 of 3 (54 items) Select Pages:  « 1 2 3
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Stop buying the records cleaning fluid?..  I think it is all about oil....  Analog Playback Forum     3  21183  09-28-2008
  »  New  Michael Fremer Continuums…..  Pre-manufactured box speaker...  Audio News Forum     54  457383  01-21-2006
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