Eastman Cellulose Acetate Butyrate CAB-381-2 is a cellulose ester with medium butyryl content and high viscosity. Other than a higher viscosity and molecular weight, this cellulose ester shares the same general characteristics as CAB-381-0.1 and CAB-381-0.5. CAB-381-2 offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness, and good film strength. When CAB-381-2 is dissolved in appropriate solvents a clear, colorless solution is produced. It is supplied as a dry, free-flowing powder.
Eastman CAB-381-2 is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests.
For applications that require food contact compliance, please refer to Eastman CAB-381-2, Food Contact.