With the outstanding three-dimensional abrasive, we are able to offer you a true highlight which promises great potential. Very long lifetime. Low scratch depth. Pressure equalization. Waterproof and washable. Minimum clogging when sanding dry. Can be used many times. Absorbs water and is resistant to silicone removers. Air and water permeability. Three components, one perfect result: siaair combines the revolutionary net-backed abrasive with a pressure-equalizing, special foam cushioning and the proven siafast fastening system. The combination is a three-dimensional abrasive for the highest quality requirements in finishing. Net-backed abrasive High-quality - the three-dimensional structure of the abrasive ensures excellent surface results and avoids clogging. Lifetime - high performance abrasive minerals ensure maximum lifetimes. Finest finishing - the innovative net structure gives exceptionally low scratch depths.