Verdigris and Goof-Off

[Michael Spreeman]

David,
 
We used to use "Renuzit" with fairly long lasting results.  It was apparently a dry-cleaning fluid, possibly 1,1,1-trichloroethane. Manufacture of the product appears to have been discontinued in the early 1970s. Occasionally a second dose at a 6 month return tuning visit would be necessary. It was taken off the market because of the nasty chemicals that will cause one to grow two heads and four arms, but I think one of the ingredients has similar properties to Xylene. No doubt the chem-heads will chirp in and provide the gory details.
                Michael Spreeman http://www.spreemanpianoinnovations.com

> From: davidlovepianos at comcast.net> To: pianotech at ptg.org> Subject: Verdigris and Goof-Off> Date: Sat, 20 Oct 2007 09:20:13 -0700> > While removing some action parts with light verdigris today I had this> brainstorm to put a couple drops of Goof-Off on them to see what happened.> I was surprised to find that the loosened up almost immediately. Reading> the ingredients I found that Goof-Off contains Xylene so I tried that which> worked almost as well. These parts were not that heavy with verdigris and> I'm wondering if anyone has any parts with heavy verdigris available that> they could try this experiment on--or has anybody tried this particular> solvent and with what success over the long term. > > David Love> davidlovepianos at comcast.net > www.davidlovepianos.com> > 
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