Diatomaceous Earth also known as Dicalite Diatomite is mainly used as a Chemically inert filter aid and filler used in a variety of food and beverage, industrial, chemical, and specialty filtration, filler, and functional additive applications. Sales Specifications DICALITE SPEED PLUS Constant Vol. Permeability Flowrate (PFRv) : 85-105 Permeability Cake Density (PCD)-lbs/cu ft: 26.0 Max Screen (140) Mesh-% retained: 8.0 Max Packing 50 lb bag, 39 bags per pallet