. . . "It should be understood thatphr means parts per 100.0 parts of the organic polymer component.Inert fillers may also be employed including, but not limited to, amorphous polymeric powders such as silicon, nylons, fumed silica, calcium carbonate, magnesium carbonate, aluminum hydroxide, kaolin clay, barium sulphate, talc, chopped glass orcontinuous glass." .