Bonded Abrasives, Coated Abrasives and Non-Woven Abrasives
A bonded abrasives is made up of abrasives grains, fillers and bonding materials they are typically pressed with high pressure or heat to form either wheels, cylinder, blocks or cones. Some common bonded abrasives are cut off wheels, chop saw blades and grinding wheels that are made of different abrasives grains starting from the most economical abrasive grain Aluminum Oxide (AO), Zirconia (ZA) and leading up to Ceramic which is the current highest grade abrasive. Although Ceramic is set to last double the life of Zirconia the method and material being grind or cut by the end user will always impact wheel life. Another form of bonded abrasive is a coated abrasive which is comprised of sanding belts, sheets, rolls and flap disc. Coated abrasives give an appearance of "sanding paper" where you can choose a variety of abrasive grits to fulfill your projects need.
Non-woven abrasives have irrupted the surface prep game and have been increasingly used in all industry it is the preferred method of any surface conditioning as its unique three-dimensional construction has functional characteristics and diverse range of performance over traditional coated abrasives. Similar to coated abrasives there is different abrasive grains and abrasive grits to choose from they are also formed into wheels, sheets and rolls. Some of the most common non-woven abrasives are known as roloc, quick change disc, cookies and wheels the most common grits are coarse (brown), medium (Maroon/red) and fine (blue). The most common attachment for these wheels are type-r backing pads which the quick change disc (roloc) is twisted and locked on to. This backing pad can be attached to a die grinder and angle grinder with adapters.