BRUSHES.
In varnishing, you, of course, desire to have a true and even surface, without a ridge to show where the brush left it. Camel’s hair flat brushes are used for this purpose, but they will not answer in spirit varnishes, as the hairs drop out or are loosened from the action of the spirit on the shellac or glue, which holds them in. Bristle brushes are the best for general use. They must be soaked for an hour or more in cold water, to fasten the bristles before using.