PDC Store Shop Nanocellulose Explore Our Products UMaine – CNF – Cellulose Nanofibrils made through the PDC’s patented mechanical grinding process. CNF – Slurry, 3% Solids “Vanilla” – Our standard UMaine made material in a slurry form. Available for purchase in sizes ranging from a 2-gallon bucket to a 55-gal drum, with even larger quantities