RockRidge Aluminum Oxide is manufactured in an electric arc furnace that produces an extremely tough, long-lasting grain which is graded to micro or macro grit exacting standards. Aluminum Oxide is an abrasive that can be repeatedly circulated and is suitable for wet or dry surface preparation, cleaning, deburring, and cutting of various metals, ceramics, glass, wood, rubber, plastic, stone, and composite materials.
RockRidge insures that their Premium Garnet is a non-ferrous, 100% natural mineral abrasive. The average Mohs hardness is 7.5-8.0 making it ideal for both surface preparation and waterjet applications. Garnet, because of its hardness and cutting ability, is the abrasive grain used for waterjet cutting applications. Blasting with garnet results in a safe, cost-effective cleaning and surface preparation operation. Its durability offers multiple turns, leading to savings on consumption, shipping, and disposal. Garnet has the cutting ability to reach bare metal, removing corrosion or coatings. It can achieve mil profile finishes for most coating applications. Garnet is ideal for use on ferrous and non-ferrous materials. Other types of media may present cross-contamination concerns on aluminum and stainless steel.
Rock Ridge Garnet is sold in 55 lb. bags (2,200 lb. skid) and 2,200 lb. super sacks. Mesh sizes include: 30/60, 36, 80, & 120. Aluminum Oxide is sold in 50 lb. bags. Mesh sizes include: 24, 36, 54, 80, 120, & 320.
RockRidge Aluminum Oxide Information Guide (PDF)
RockRidge Garnet Information Guide (PDF)