WCA is an Alumina powder developed and introduced by Micro Abrasives Corporation in 1957.
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WCA is an Alumina powder developed and introduced by Micro Abrasives Corporation in 1957. WCA is known throughout the world for its unique particle shape, aspect ratio and size distribution. Each WCA particle is a discrete crystal of alumina having a purity of over 99%. The crystals have a smooth surface and a distinctive platelet shape with an aspect ratio of 5:1. Each WCA particle has an exceptional resistance to fracturing which gives it an unparalleled advantage over typical fused aluminum oxides. WCA is manufactured in a time proven high tech process that offers performance, dependability and consistency. This hydraulic process offers one of the most repeatable lot to lot consistencies in the abrasive industry and has done so for over 50 years. Applications Precision Optics Optical Glass Quartz Germanium Piezo-Electronics Semiconductor Materials Gallium Arenide Precision Bearings Buffing Compounds Stainless Steels Harden Steels Minerals Ferrous & Non ferrous Metals Features The platelet crystal shape causes orientation parallel to the lap and the work surface; pressure is thereby distributed uniformly over a larger surface of the abrasives and work surface. This allows for more stock removal and less subsurface damage as well as prolonged abrasive life. The aspect ratio allows for the abrasive to vehicle ratio to be decreased from 50%-30% on typical fused aluminum oxide to 20% -15% on WCA slurries, thus reducing abrasive consumption by 50%. Uniform size and quality of particle integrity prevent random scratching or damage to the work piece. Micro Abrasives offers a variety of different suspension treatments to prevent hard packing and provide different levels of suspension. Custom blends of suspension treatments can be made for special or unique applications. Premixed slurries are available upon request.
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