PDC STORE 91르적 – CNF – Cellulose Nanofibrils made through the PDC’s patented mechanical grinding process. CNF – Slurry, 3% Solids “Vanilla” – Our standard 91르적 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 available via special order requests.