Date:         Tue, 19 Feb 2008 09:55:54 -0500
Reply-To:     Association for Recorded Sound Discussion List
              <[log in to unmask]>
Sender:       Association for Recorded Sound Discussion List
              <[log in to unmask]>
From:         Eugene DeAnna <[log in to unmask]>
Subject:      Re: LC Record Cleaning Solution
Comments: To: Association for Recorded Sound Discussion List <[log in to unmask]>
In-Reply-To:  <[log in to unmask]>
Content-Type: text/plain; charset=US-ASCII
Content-Disposition: inline

Kurt,

On the recommendation of the LC Preservation Research and Testing Division, we've replaced the Triton formula with the Tergitol and water formula they devised.  The chemist there felt it was safer for staff to use, less corrosive, but strong enough to be effective.  We've found it to work well on shellac, vinyl and lacquer discs, though probably not as well as the Triton/ammonia formula for extremely dirly lacquers.

Gene

Gene DeAnna
Head, Recorded Sound Section
MBRS Division
Library of Congress
(202) 707-3108

>>> Kurt Nauck <[log in to unmask]> 2/19/2008 4:11 AM >>>
>The current formula of the LoC is using TergitolT 15-S-7 surfactant:
><http://www.loc.gov/preserv/care/record.html>


Thanks Jos, that's interesting. The LC formula I have calls for

Triton XL-80N Surfactant
Ammonia liquor (for lacquers)
Alkyl dimethyl benzyl ammonium chloride (aka Oakite Sanitizer 1)
Photoflow
Water

Would someone from LC please comment? Have you replaced all of these 
ingredients with TergitolT and water?


Kurt Nauck

c/o Nauck's Vintage Records
22004 Sherrod Ln.
Spring, TX  77389

Website: www.78rpm.com 
E-Mail: [log in to unmask] 

Phone: (281) 288-7826
Fax: (425) 930-6862