Patent ID: 6482308
Filing Date: 2002-11-19
Classification: B24B,B24D,Y10T

Abstract:
A process comprising using a canvas grinding article for grinding of cathodically lacquered surfaces before applying of a primer in a dry operation step by hand, the lacquered surfaces having a predetermined basic roughness and roughness peaks extending over an intended lacquer layer, the canvas grinding article comprising:a woven fabric layer defining a layer plane and including crossing yarns; a coating of resin and abrasive grains made up to confer to said woven fabric layer a sufficient stiffness combined with enough flexibility to conform to a surface to be ground when there is hand pressure by a hand pad; the crossings of said crossing yams defining a grinding plane of the abrasive article; said abrasive grain being distributed over said grinding plane and fixed thereto island-like or in a grid pattern leaving gaps or free spaces without effective abrasive grain, said gaps or free spaces being arranged in a recessed plane relative to said grinding plane and being dimensioned and distributed to accommodate roughness peaks of the lacquered surface to be worked upon so that such roughness peaks of the lacquered surface to be worked upon can be sized from the side and chopped by said abrasive grain in said grinding plane without impairing the basic roughness of the lacquered surface; a layer of hook or loop material being provided on said woven fabric layer on a side opposite to that of said grinding plane and adapted to be joined to a hook and loop fastener hand pad so as to facilitate, uniformly guiding the canvas grinding article across the lacquered surface to be worked upon.