Sanding sheets are sheets of paper or cloth with an abrasive material glued to one face.They are used to make surfaces smoother, remove materials from surfaces or sometimes to make a surface rougher.How to use a Sanding SheetSanding sheets can be used for hand sanding or power sanding where they are attached to power tool such as an orbital sander.Hand sanding gives a lighter touch to the material being sanded.Power sanding sheets are fitted onto a power tool to quickly get rid of blemishes, shaping and levelling wood or for preparing metal surfaces for painting. Abrasive materialsAluminium Oxide – The most common in modern use, with the widest variety of grits, lowest unit cost; can be used on metal (i.e. body shops) or wood. Ideal for profiled surfaces, deburring and derusting metal. Long lasting, use for hand or power sanding.Silicon Carbide – available in coarse grits all the way through to microgrits, common in wet applications. Long lasting, tear resistantGradesFine for sanding bare wood in preparation for finishing, not suitable for removing varnish or paint from wood, use for cleaning plaster and water stain from woodCoarse for Rapid removal of materialMedium for sanding bare wood in preparation for finishing, for gentle removal of varnish, also used for skateboard grip tapVery fine for sanding of bare woodExtra Coarse for the very fast removal of material, the initial sanding of hardwood floors