Rhynowet Plus Line is a Silicone Carbide based paper as opposed to Rhynowet Red Line that is an aluminium oxide based paper. We believe that for more wear resistant steels this will be beneficial as it will cut cleaner and last longer. Best used wet but can be used dry it is on a flexible latex backing. The Silicon Carbide Mineral Grain ensures the smoothest surface finish compared to Aluminium Oxide. Sold in individual sheets.