Once the final coat of varnish is well dried and hard, the violin is polished. The first polishing is done with 400-grit sandpaper and water. The second polishing is with 600-grit paper and water. This is followed by pumice with light oil. The oil is a mixture of oil, water, and turpentine. It is critical at all times to polish lightly, so as not to break through the varnish layers.
Final polishing is done with Lime Powder or Diatomaceous Earth. Finally, the violin can be polished to a gloss with a commercial violin polish.