This circumstance led to experiments to ascertain the preservative nature of coal tar. More than fifty years ago W. H. Hyett and others impregnated wood with gas tar, and reported that cuch wood ...

Specific uses and disposal of this type of treated wood have raised safety issues, primarily because of arsenic. Coal tar creosote is the most widely used wood preservative in the United States.

There are three sources of creosote oil, viz., coal tar creosote, wood tar creosote, and creosote bush, also known as chaparral. Coal tar creosote oil is produced by the distillation of coal tar. Coal ...

Tar makers transmit their skills to apprentices, often within the family. Craftsmanship begins with careful selection of materials for the instrument: mulberry wood for the body, nut wood for the neck ...