Coated Abrasives–New Developments

Several outstanding developments in coated abrasives have resulted in producing a better technical tool for woodworking industry. The “openkote” method of manufacturing abrasive materials provides space between abrasive grains for accumulation of the residue caused by sanding, leaving grains exposed and free for further cutting. The development of paper with sufficient tensile strength and adequate surface for coating enables paper-backed abrasives to be used as a substitute for the more expensive cloth-backed type. Flexible abrasive cloths have been developed to sand the contours of mouldings. The ruggedness of garnet grain has been improved by a heat treating process, which enables increased productive life of garnet-coated abrasives at higher machine speeds. The artificial minerals, aluminum oxide and silicon carbide, have been improved both in the strengthening of grains and the control of their structures. The electrostatic method of coating can coat abrasive surfaces of uniform dimensions. Several new adhesives have been developed to produce the bonding strength, resistance to heat, and flexibility required in modern coated abrasives. A non-loading finishing paper has been designed particularly for use on a high-solids clear sealer.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member