Bitumen MC-800 is a medium-curing cutback asphalt produced by blending penetration-grade bitumen with a medium-volatility solvent, resulting in a viscosity range of 800–1,600 cSt at 60°C. It is commonly used for prime and tack coats, surface dressing, and cold mix asphalt. The solvent evaporates after application, leaving a durable asphalt residue. It's supplied in steel drums or bulk containers.