Paper and Printing Recipes / A Handy Volume of Practical Recipes, Concerning the Every-Day Business of Stationers, Printers, Binders, and the Kindred Trades

by John Sawtelle Ford

Effect of Petroleum Oil on Wood Type.

Although petroleum oil is a highly useful fluid for cleansing wood letter or wood-cuts, the printer should be cautioned that it is highly detrimental to type and stereoplate. While it has no effect in opening the pores of the wood, but on the contrary, hardens the surface, rendering the face peculiarly smooth, it corrodes or rots the metal, and leaves a white powder on the face, which, although it may be removed with a brush, shows that the type has been injured. Besides this, petroleum is highly dangerous on account of its inflammability. It cannot be extinguished by water.