The body and scroll of all bowed stringed instruments will be finished in a substance that protects the wood, provides aesthetic beauty and influences tonal characteristics.

There are three basic finish types:

Polyurethane - Many inexpensive instruments are finished with polyurethane. This finish is very hard and is used because of its durability. However, it can dampen the sound and obscure much of the physical beauty of the wood.

More expensive instruments are varnished. Two types are typically used, spirit and oil varnish.

Spirit Varnish - Spirit varnish is made from various resins and pigments dissolved in alcohol. It is applied in many thin coats and is generally easy to work with because it dries quickly.

Oil Varnish - Oil varnish is made from resins and pigments dissolved in turpentine. It is thicker and longer drying, but is more elastic and rich in color. Oil varnish is generally preferred for fine instruments. Spirit and oil varnish can be applied in a manner that enhances the natural beauty of the wood. They also allow the wood to vibrate more freely than polyurethane and therefore are preferred tonally.