- Description
Danville Aluminum Oxide 27 Micron 1/lb For use in the PrepStart and PrepStart H2O. Aluminum Oxide, 27 Micron is designed for bonding and cavity preparation, general use, metal, porcelain, acrylic, and composites. Abrasives are the highest quality medical grade alpha alumina and particles are precisely sized and desicated for an even flow and an efficient cut.