Faithfull flexible latex impregnated waterproof backing paper coated with an aluminium oxide abrasive. Used wet or dry for sanding paint, primer and body filler. Coarser grades are ideal for removing major imperfections, finer grades are ideal for final painting. Super fine grades allow exceptionally fine finished to be achieved, especially when used wet. These sheets can be cut to any size, making them very versatile for use in assorted applications. C-weight paper on grades C60-C180. A-weight paper on grades A240-A1200.