M. C. Hillick, Practical Carriage and Wagon Painting
“ Never soak a brush in water before using it in paint. Animal fat circulates in the capillary tubes of all bristles and hair, and if water is soaked into these arteries, the spring and elasticity of the brush is not only destroyed, but it speedily becomes a very much water-logged tool. To swell up a brush which for some cause has become dried out and shrunken, part the bristles so that the end of the handle is exposed, and pour in a small quantity of water, say three or four teaspoonfuls. ”
