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How to Refinish a Piano With Veneer Wood

Wood veneer is a thin layer of hardwood grain that is laminated over lesser wood or other materials to give the appearance of hardwood. Many old pianos are built from pine, or a variety of woods that do not take stain well or have unattractive grains. These pieces are overlaid with veneer to get the desired effect at a fraction of the cost. A piano's cabinet can be refinished similar to most pieces of furniture. When refinishing veneer, repair any damage first. Use water-based chemicals to prevent the veneer from lifting.

Things You'll Need

  • Wood glue
  • Syringe
  • Wax paper
  • Scrap lumber
  • Clamps
  • Water-based stripper
  • Disposable paintbrush
  • Soft rag
  • Odorless mineral spirits
  • Sandpaper
  • Tack cloth
  • Stain and finish all-in-one
  • Paintbrush
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Instructions

  1. Repairing loose veneer

    • 1

      Inspect the piano for lifted or split veneer. Inject wood glue with a syringe under any pieces that are loose or cracked.

    • 2

      Cover any damaged areas with wax paper and place a scrap of hardwood lumber over the wax paper to press the damaged veneer back into place.

    • 3

      Clamp the lumber snugly with C-clamps or bar clamps and allow the glue to dry overnight. Remove the clamps, lumber pads and wax paper from repaired areas.

    Stripping the Old Finish

    • 4

      Apply a coat of water-based stripper, using a disposable paintbrush. Work with small sections so that you can scrape off the stripper before it dries.

    • 5

      Allow the recommended working time, then scrape the stripper and old finish from the piano with a nylon scraper. Scrape the used stripper into a covered metal container for disposal.

    • 6

      Spread stripper on a new section, overlapping the first section for adequate coverage. Continue working across the surface of the piano, applying stripper and scraping off the old finish. Work detailed sections with a nylon scrubber to remove the finish. Rinse the surface of the wood with a rag wet with odorless mineral spirits to remove old stripper and any finish residue. Allow the piano to dry to the touch.

    Finishing the Veneer

    • 7

      Sand the veneer lightly with 220-grit sandpaper, working with the grain. Work by hand or with a sanding block.

    • 8

      Wipe the surface with a tack cloth. Apply two coats of stain and clear finish all-in-one in your choice of color and finish sheen. Work with a soft-bristled paintbrush in line with the grain of the veneer. Start with detailed and hard-to-reach areas first to ensure adequate coverage.

    • 9

      Spread the finish evenly to prevent runs. Allow three hours between coats and 24 hours before returning the piano to normal use.