What should be used as a mix release agent for truck beds and rollers?

Far too often we still see diesel fuel used as a mix release agent. Diesel fuel is a solvent. Any excess amount will dissolve the asphalt films on the aggregate particles, thus contaminating the mix. Commercial mix release agents are readily available and should be used. They generally are soap or emulsified wax or other stick-resistant materials that do not contaminate the mix. It has been our experience that a special release agent is required for modified asphalts. Contact your local State Department of Transportation for a list of approved release agents.