Pin block dope mess

[Jeff Stickney]

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Bob and others,
    Thanks for your ideas.  I haven't had a chance to try the various
products on the plate yet, but I did take denatured alcohol to my tools and
they cleaned up nicely.  I'll probably try the TSP/water first as the least
"hot" on the plate, but the alcohol seems to work well and is not as bad
IMHO as lacquer thinner or naphtha.  Thanks again.

Jeff Stickney, RPT
University of Montana
jpstickney@montanadsl.net

  -----Original Message-----
  From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]On Behalf Of
BobDavis88@aol.com
  Sent: Monday, March 31, 2003 9:18 AM
  To: caut@ptg.org
  Subject: Re: Pin block dope mess


  Jeff Stickney writes:


    My problem is this:  What can
    I use to clean this [pinblock dope] off the plate for refinishing?


  I'd say don't use any hotter solvent than necessary. It depends upon the
plate finish, and which pin dope. Start with soapy water. We wash plates
with TSP and water (tri-sodium phosphate). If you're lucky, it's the
glycerin-based dope, and TSP will get it. Alcohol would too, but some plates
are shellac and alcohol is also the solvent for shellac. Lacquer thinner is
the next hotter solvent, and will get the dope but soften even more plate
finishes.

  You can get TSP at most professional paint stores and most hardware
stores. If you use it, be sure that it is truly tri-sodium phosphate and not
"TSP brand" cleaner, which is not TSP. Rinse very thoroughly.

  You've indicated that it is slow to come off tools with "Goof-off," so
it's possible that either it's some mystery compound, or it might have
combined with the plate finish. In that case you're on your own!  Even
lacquer thinner probably won't cut the japanning. Shellac makes a good
barrier coat. Please let us know what you find.

  Bob Davis

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