Bitumen

A thick, sticky black substance

Description

A thick, sticky, black substance that is obtained from the distillation of crude oil or natural bitumen deposits. Bitumen is used as a binder for asphalt and roofing materials, as well as a waterproofing and sealing agent. Bitumen has a high viscosity and durability, but it also poses environmental and health risks due to its toxicity and flammability.