[pianotech] Plate finish problems

[Gene Nelson]

I refinished 3 plates using Kondar primer made by PPG. It has more solids that most others.
It is an automotive type and requires a specific lacquer thinner and sands very easily. You might need a sealer coat first if it reacts with what is on there.
Not available is some California counties because of voc's. Peter Clark introduced it to me.
Gene
  ----- Original Message ----- 
  From: Dale Erwin 
  To: pianotech at ptg.org ; tunerryan at gmail.com 
  Sent: Friday, November 19, 2010 5:14 PM
  Subject: Re: [pianotech] Plate finish problems


  Pitch it to Ryan Sowers
    Dale





  Dale S. Erwin
  www.Erwinspiano.com
  Custom piano restoration
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  209-577-8397
  209-985-0990





  -----Original Message-----
  From: Greg Newell <gnewell at ameritech.net>
  To: pianotech at ptg.org
  Sent: Fri, Nov 19, 2010 3:16 pm
  Subject: Re: [pianotech] Plate finish problems


  Dale,
                  We should get this guy to do a class at the convention! He’s really quite good!!!

  Greg Newell
  Greg's Piano Forté
  www.gregspianoforte.com
  216-226-3791 (office)
  216-470-8634 (mobile)

  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Dale Erwin
  Sent: Friday, November 19, 2010 1:32 PM
  To: pianotech at ptg.org
  Subject: Re: [pianotech] Plate finish problems

  Now were talking!
    Thanks Greg,


  Dale S. Erwin
  www.Erwinspiano.coms
  Dale,
                  Here’s what I received back from Greg Williams, the finish and touch up teacher from Mohawk.

  Greg, for a quick answer without asking for more detail from him; there are automotive products such as Feather Fill (by Evercoat), a number by Bondo and other vendors that will do the filling with the requisite adhesion to a well prepared substrate. It is important to have an unbroken final primer coat after the level is done.  That is, when you have done all of the filling and sanding to level, a final primer coat will be applied and sanded smooth without breaking through to a subcoat.  No more spot filling is to be done at this point.  If additional spot filling is necessary, you will need to apply another full coverage primer coat.

  I would use catalyzed (requiring a hardener) products to avoid subsequent shrinking from the evaporation of solvents found in air dry products. Look through this website for more hints
  http://www.evercoat.com/productCategory.aspx?cat=2 

  There are pourable polyester and epoxy filler/primer/feathering products available from automotive refinishing suppliers.  I imagine that extensive sanding will be necessary regardless of how the product is applied in order to get a really good looking final finish. 

  I hope this is helpful. I enjoyed talking with you in the class. 

            Greg Williams
      wood finishing specialist
            since 1971
            Hampton, GA
           770.853.5364
    


  Greg Newell
  Greg's Piano Forté
  www.gregspianoforte.com
  216-226-3791 (office)
  216-470-8634 (mobile)

  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Dale Erwin
  Sent: Friday, November 19, 2010 11:15 AM
  To: pianotech at ptg.org
  Subject: Re: [pianotech] Plate finish problems

  Thanks Ron/Terry/ Al/ Greg and all who responded with suggestions.
    Ron...To be clear I wasn't about to leave any of the old finish on.  Ever things gotta go before the primer/magic wand/ filler/whatever is employed.  I wonder if the original japanning process is difficult or that specialized that it couldn't be replicated for plate jobs.
    Just think blast the crap off every plate and then pour on the japanning and start over. 
    Something else to add to my wish list along with a keyboard pounder.


  Dale S. Erwin
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