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LATEST UPDATE OF THIS PAGE: 8/3/06
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Refinishing a
Chickering Grand
The
project described below was completed on a 1918 Chickering 5'5"
grand piano. This was a fairly complete restoration,
involving replacement of the pinblock and restringing the piano, in
addition to complete reconditioning of the the piano and damper
actions, so we were able to access all parts of the piano. Our evaluation of the existing wood surfaces
and finish indicated many areas of damage and also the presence of a
variety of finishes from previous applications. Stripping,
repairing, and refinishing the veneer and other wood surfaces on
this piano is a time-consuming process. However, the owner had a strong
attraction to this piano--she "grew up with it"--and she wanted to
invest the funds needed for this major project. The outcome
was a musical instrument that looks
and plays like new.
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1918 Chickering Grand 5'5" Pictures of the Evaluation,
Repair, & Refinishing Process taken in our shop |
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1 – We removed the legs and placed the piano on
our Grand Transporter for easy moving around our
shop. |
 2 – We completely dismantled
the piano, removing the legs, lyre, lid, music rest, and other wood
parts. We also removed all screws and hinges, numbering them for
later reference, and we removed the strings and pins. |
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3 – After removing the plate
bolts, we lifted the plate out of the piano, using our
ceiling-mounted winch. |

4 – Using scrapers, chisels,
dremel tools, sandpaper, and a power sander, we removed all the old
finish from the soundboard, bridges, and soundboard moulding. |
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5 –
Using a special
Dremel wire brush we cleaned the bridge pins and removed graphite
and previous finish from the bridges. We cleaned and polished the
metal plate posts using a larger power wire brush. |

6 –
We applied a thick coat of liquid
graphite to the bridge surfaces between the bridge pins. |
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7
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We stripped the inside of the piano
rim and scraped the soundboard mouldings. |

8 – We felt the soundboard mouldings
would look better if refinished with clear sealer and
urethane--same as the soundboard--so we masked them off for later attention. |
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9
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With the case standing upright on a
soft styrofoam pad and newspapers, we stripped the exterior
surfaces. |

10 – Many coats of previous
finishes made the stripping process difficult to complete. Finally,
after three applications of stripper, the grain pattern began to
emerge on the mahogany veneer. |
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11
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We sanded and repaired the wood
surfaces of the piano case. |

12 – After wood preparation,
we applied a thick coat of walnut-colored grain filler on the
mahogany veneer and brown mahogany-colored stain on the solid wood
surfaces, then rubbed out the residue with burlap. The result was a
smooth, even-colored surface. |
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13
– After the grain filler and stain had 24 hours of drying time, we
brushed on a coat of sealer. Note that the actual color of the
surface more closely resembles the color shown in picture #12. |

14 – From a decals supplier, we
ordered a new fallboard decal matching the design of the original. |
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15 –
We applied two coats of clear lacquer over the sealer. Then we
hand-sanded the interior of the case and applied a final coat of
lacquer. We will apply the final coat of lacquer to the exterior of
the case later in the process, after the piano has been restrung. |

16 –
We removed the
masking tape and plastic from the soundboard, bridges, and keybed. |
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17 –
We applied two coats of
sealer to the soundboard and sides
of the bridges, followed by hand-sanding and two coats of satin spar
urethane. The case is now ready for installation of the plate after
it is refinished and a new pinblock has been installed. |

18 –
We
dismantled all
the piano's components, removing all metal parts and screws. |
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19 –
We stripped the old finish from all parts with wood surfaces. On
most surfaces, this involved applying stripper three times because
of the many layers of earlier finish. |

20 –
After sanding all
wood surfaces and repairing damaged areas, we experimented with
stain colors and grain fillers to preserve the beautiful mahogany
grain of the veneered surfaces as well as make the most of the
non-veneered solid woods. For example, the piano lid and fallboard
have veneered surfaces but the lyre is made of solid maple. Our
solution in this case was to apply walnut-colored grain-filler on
the veneered surfaces and brown mahogany paste stain on the solid
surfaces. |
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21
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Pictures 21 to 25 show in detail
our wood-preparation process for the legs of this grand piano. We
stripped off the old finish, using three applications of stripper.
To ensure that old finish would drop to the table, we installed the
legs onto a wood-support. We also use a large block with holes to
support the props while stripping and cleaning. |

22 – After the third
application of stripper and cleaning with a scraper, only wet
stripper material remains on the surface. |
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23
– We cleaned any stripper residue from the surface using extra fine
steel wool. |

24 – When the surfaces were
dry, we sanded them and applied wood-repair patch colored with brown
mahogany stain to damaged areas. |
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25
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We sanded the repaired areas. |

26 – We applied brown
mahogany stain to the solid wood surfaces and walnut-colored grain
filler to the veneered surfaces of the legs and the music desk. |
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27
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We scrubbed the piano plate. |

28 – We rubbed down the
finished surface of the soundboard with three grades of polish,
leaving in satin sheen. |
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29
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We refinished the new pinblock with
sealer and satin urethane before drilling the tuning pin holes in
it. |

30 –
When restoring
pianos we seldom use stripper to clean plates, but this one had so
many coats of previous finishes that we felt we had no choice. After
brushing on stripper, we scrapped and brushed the surfaces, cleaning
them down to bare metal. |
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31
– Agraffes are made of brass and shouldn't be refinished. We spent a
lot of time cleaning previous layers of finish from them and
polishing them, ensuring a clean "termination point" for each
string. |

32 –
We masked off the
agraffes so they would remain clean throughout the plate refinishing
process, and cleaned all surfaces with wax & grease remover. |
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33
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We applied a thick coat of
buff-colored catalized urethane primer. |

34 –
We smoothed the
primed plate surfaces with "scotch-brite" pads. |
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35
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We applied a pale gold color coat
to surfaces of the plate. |

36 – Before applying a final
clear top coat on the plate, we installed a new serial number. |
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37
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We installed a
new Chickering fallboard before applying the final coat of lacquer. |

38 –
Using 220-grit sandpaper, we smoothed the lacquered surfaces, in
preparation for applying a final coat of clear satin lacquer. |
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39 – On veneered surfaces such as
the piano lid, the final finish coat of satin lacquer accentuates
the beautiful grain pattern of the mahogany veneer. |

40 – For all pieces that
required lacquer on both sides, we first applied a final coat on one
side and then, after a day's drying time, we masked off the finished
side before lacquering the other side. This will prevent lacquer
overspray from contaminating the side already finished. |
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41
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We placed the finished pieces in a
corner of our showroom for drying. These will be installed in the
piano after the restringing and reconditioning work has been
completed. |

42 –
We cleaned and
polished the brass pedals and pedal props. |
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41
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We rebushed the holes with new felt
and reassembled the pedal lyre. |

42 –
We reinstalled
the refinished legs and pedal lyre on the piano. |
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43
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We reinstalled the refinished
pinblock. |

44 –
We cleaned and
polished the plate bolts and screws before tightening them to seat
the plate. |
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45
– We painted the plate lettering with black enamel. |

46 – Restringing is
completed before the final coat of lacquer is applied to the case. |
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47
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With the plate and keybed masked
off, we applied the final coat of lacquer. |

48 –
We sanded,
stained, and lacquered the wood parts of the bench. |
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49
– We cleaned and polished all brass hardware, installed new
nameboard felt, and installed the refinished fallboard in the piano. |

50 –
We installed the
fallboard using new, longer screws to ensure a snug fit. |
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51
– We
assembled and installed the
refinished the music rest and music desk. |

52 –
We assembled and
installed the refinished lid and lid props. |
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53
– We
assembled the refinished bench. |

54 – Ready for delivery! |
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