Profile: Roan Industries, Inc. specializes in offering grinding aids to Portland cement industries. We provide three types of grinding aids such as RII-77 glycol based, RI-85 an amine acetate, and RI-77AA a custom blend of glycol & amine acetate. RII-77 is a polymeric diol useful as a Portland cement grinding aid and pack-set inhibitor. RII-77 is shipped as a 100% active material and can be stored at this concentration. If it is anticipated that the material temperature will fall below 25°F. It should be diluted when delivered to 50% - 75% concentration as it can be more readily handled at these dilutions when cold.