Definition - What does Coal Tar mean?
Coal tar is a dark-colored liquid or semi-liquid substance that is generated from bituminous coal through the process of significant distillation.
Corrosionpedia explains Coal Tar
Coal tar contains various chemicals such as aniline, benzene and phenols. It is viscous and used for applications such as waterproofing and roofing. Its waterproofing property makes it a key corrosion-preventing substance in construction applications.