Premium P-graded, heat-treated aluminum oxide abrasive. Unique fiber-reinforced, flexible B-weight latex-saturated backing. Water-based stearate, non-pigmented, No-Fil coating. PSA discs in fine grits have a tabbed, white translucent liner. Superior life, fast cut rate, consistent finish. 50-60% improvement in tear strength. Flexible; can be used wet. Provides maximum load resistance and extended life; no color transfer to work. The PSA adhesive is protected from air-borne contaminants. The tab allows easier removal of the paper liner.