A line of high purity calcined alumina abrasive powders for grinding, lapping, and polishing a wide range of hard and semisoft optical materials has been introduced by Meller Optics, Inc. of Providence, Rhode Island.
Meller Microlux Alumina Powders feature two ultrapure grades of abrasives for use with a broad range of optical materials. The Microlux-R grade has large agglomerated particles for aggressive grinding and lapping that break down under pressure for final polishing and are 99.98% pure. For the ultra- fine polishing of semisoft crystalline and composite materials, Microlux-RZ is 99.99% pure with de-agglomerated powders and controlled particle sizes.
Ready to mix with de-ionized water, both Microlux-R and -RZ grades are ideally suited for application directly to optics on spot blocks. Offered in seven particle sizes from 0.05 to 3.0 microns, they can produce surface finishes to 10-5 scratch-dig on a wide range of hard and soft materials including zinc selenide, germanium, silicon, and stainless steels.
Meller Microlux Alumina Powders are priced per 5 lb., depending upon grade, particle size, and quantity. Free samples and price quotations are available upon request.