Evanite glass fibers produced by Rotary, Flame Blown and CAT processes, have been used commercially in the specialty nonwoven industry for many years. They were first developed as a substitute for wood pulp used specifically for the manufacture of batter separators. In more recent times, Evanite glass fibers have been extensively used for high efficiency filtration media, and as cellulose pulp enhancement to improve various physical properties of the sheet, especially pore size for liquid filtration and dimensional stability for special grades of papers.