[pianotech] plate finish

David Love davidlovepianos at comcast.net
Fri Feb 26 21:23:55 MST 2010


There is a method I use for repairing chips as long as it's not inside the
string area.  Use bondo or something similar (and soft to sand) to fill the
chip.  Try and keep the patch as small as possible but when dry go ahead and
carefully sand it flush to the surrounding area down to whatever grit you
used in the original final coat.  Seal the bondo with some thin CA glue
using the smallest dropper you can find so it doesn't wander too much or
build up and lightly sand again trying to keep the sanded area smaller than
a quarter.  Then get a piece of paper (regular letter size office paper will
do) and cut a hole in the center of it about the size of a quarter.  Hover
the paper over the plate with the hole over right over the area to be
sprayed.  The paper should be an inch or more off the plate (closer if you
don't want it to bleed much and farther if it's a more open area.  Then
using an aerosol applicator, spray through the hole in the paper from a
position about 6 inches above the paper onto the plate.  Very light coats!
The hole in the paper will keep the spray directed at the small repaired
area but create a soft edge to the spray.  You can do the same thing with
the clear coat.   

 

David Love

www.davidlovepianos.com



In any case, all I have really been able to do is brush in some gold
lacquer, but this doesn't fill the chip, it just colors it. A bondo patch
will require sanding which will scuff the plate beyond the small localized
repair, and now things can go from bad to worse.






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