BD90-M BD90-M is a bead form dry. It has excellent physical and chemical properties such as high capacity and operating capacity, lower pressure drop, well physical and chemical stability. The product is supplied in the hydrogen form. BD90-M is specially used in the removal of glycerine and soaps from biodiesel. It can remove soaps and salts simultaneously. Appearance Black spherical beads Polymer Matrix Structure Styrene - DVB Type Macroporous strong acid Functional Group R— ( SO3) -M+ Ionic Form H+ Moisture Content %