A bituminous material, which is a by-product from the coking of coal. It is used as the waterproofing material for tar and gravel built-up roofing.
A bituminous material produced by distilling crude tar residue derived from the cooking of coal. It is used as the waterproofing material for tar and gravel built-up roofing. French (Goudron d'houille)
Dark brown to black solid bitumin obtained from coal tar, used as the waterproofing agent of a deadlevel or low-slope built-up roof.
a coal tar used as the waterproofing agent in dead-level or low-slope built-up roof membranes.
A dark brown to black, semi-solid hydrocarbon formed as a residue from the partial evaporation or distillation of coal tar. It is used as the waterproofing agent in dead-level or low-slope built-up roofs. (For specification properties, see ASTM Standard D 450, Types 1 and II.)