Q. How is cutback bitumen made?

Answer

In order to create cutback bitumen conventional bitumen is thinned out with a petroleum-based solvent. Since cutback bitumen has a lower viscosity than neat asphalt it can be employed for low-temperature tasks. When a cutback is performed the solvent is removed leaving behind only the Bitumen. When the petroleum solvent in a bitumen cutback evaporates the bitumen is said to cure. Primers and tack coatings made from cutback bitumen are the norm. Road oils or slow-curing oils are typically the byproduct of the fractional distillation of various crude petroleums. Naphthenic paraffinic and aromatic oils have all been utilized traditionally.