Alternative PFAS-free Paper Barrier Coatings CORKOTE-83HV-1 is an excellent barrier coating that exhibits numerous resistance properties. When applied via offset to raw or coated paperboard it provides very low MVTR and Cobb values. CK83HV-1 is a unique backside, barrier coating which provides grease and water resistance and is used when direct food contact applications are needed. CORKOTE—83LS-1 is an excellent barrier coating that exhibits numerous resistance properties. CK-83LS-1 can be applied via flexo or gravure to raw or coated paperboard and will provide very low MVTR and Cobb values. This unique gloss coating has a low COF and is used when direct food applications are needed.