HCR Resins are used in coloured asphalt and as a clean binder for synthetic bitumen for the road construction and building industry. The clear, amber-colored binder, composed of a petroleum hydrocarbon resin, is mixed with coloured coarse, fine and mineral aggregate at a hot–mix plant. These materials may have improved mechanical properties as compared to the traditional modified bitumen. Our hydrocarbon resin in synthetic bitumen improves rheological characteristics, such as viscosity, adhesion, cohesive strength, durability, abrasion resistance, drainage endurance and lengthens the duration of color asphalt. This type of binder is recommended for lightly frequented surfaces as well as for heavily frequented roads. Our hydrocarbon resins are suitable for aliphatic, aromatic and naphthenic systems.