Bitumen, Physical State : Liquid

Bitumen, also known as asphalt in the US, is a sticky, black, highly viscous liquid or semi-solid substance derived from crude oil, primarily used as a binder in road construction (asphalt) and for waterproofing in buildings. It's a heavy hydrocarbon that acts as a durable, adhesive, and waterproof material, often found in natural deposits like oil sands or as a residue from petroleum refining, and can also refer to natural pitch.