What is Slow Curing Cutback Bitumen? Slow curing Cutback Bitumen is a type of bitumen mixed with a solvent, widely used in road construction. It falls within the heavy distillate range (SC-70, SC-250, SC-800, SC-3000) and has low volatility oils. The fluidity of the cutback bitumen depends primarily on the ratio of solvent to asphalt […]