Cutback bitumen is a liquid bitumen obtained by dissolving penetration bitumen in a solvent. Solvents are obtained from the distillation of oil in refineries. Medium cure bitumen (MC) is prepared by dissolving penetration bitumen in solvents of moderate evaporation or volatility. In general, the evaporation rate of these solvents is 0.8 to 0.3 times the evaporation rate of acetone. Generally, MC bitumens are made with kerosene. It does not evaporate quickly when mixed with MC aggregates. Therefore, it is used as a binder in cold asphalt.