1.   Mineral spirits will soften a natural varnish finish so that surface material can be wiped off.

2.   Natural varnish, for example, is made from tree gum.

3.   Natural varnish has given way to the modern urethane varnishes that are harder and more durable.

4.   She prefers polyurethane to natural varnish because it lasts longer.

5.   They are used primarily by furniture refinishers for brushing on natural varnish.

6.   Too much solvent can soften a natural varnish finish.

7.   Traditional floor finishes were natural varnish and shellac.